Meteoriti.LV

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   Latvijas Astronomijas biedrība

Meteoritical Bulletin Database
News feed for newly approved meteorites:

• Grass Flat (Iron, IAB-MG) 2023-01-29
• Grizim 002 (Lunar (feldsp. breccia)) 2023-01-29
• Northwest Africa 14876 (EL6) 2023-01-29
• Northwest Africa 14879 (Achondrite-ung) 2023-01-29
• Northwest Africa 15158 (LL3) 2023-01-29
• Northwest Africa 15160 (L3) 2023-01-29
• Northwest Africa 15435 (Howardite) 2023-01-29
• Northwest Africa 15437 (LL(L)3) 2023-01-29
• Northwest Africa 15517 (Eucrite-cm) 2023-01-29
• Northwest Africa 15576 (EL6) 2023-01-29
• Northwest Africa 15585 (Eucrite-unbr) 2023-01-29
• Northwest Africa 15591 (Iron, ungrouped) 2023-01-29
• Northwest Africa 15622 (Winonaite) 2023-01-29
• Northwest Africa 15626 (Mesosiderite) 2023-01-29
• Northwest Africa 15627 (Diogenite) 2023-01-29
• Northwest Africa 15641 (CK5-6) 2023-01-29
• Northwest Africa 15642 (LL3) 2023-01-29
• Northwest Africa 15651 (L3) 2023-01-29
• Northwest Africa 15653 (LL3) 2023-01-29
• Northwest Africa 15662 (LL3) 2023-01-29

NASA CNEOS

• NASA System Predicts Small Asteroid to Pass Close by Earth This Week
  2023-01-25
  On Thursday, Jan. 26, a small near-Earth asteroid will have a very close encounter with our planet. Designated 2023 BU, the asteroid will zoom over the southern tip of South America at about 4:27 p.m. PST (7:27 p.m. EST) only 2,200 miles (3,600 kilometers) above the planet’s surface and well ...
• NASA Program Predicted Impact of Small Asteroid Over Ontario, Canada
  2022-11-22
  In the early hours of Saturday, Nov. 19, the skies over southern Ontario, Canada, lit up as a tiny asteroid harmlessly streaked across the sky high in Earth’s atmosphere, broke up, and likely scattered small meteorites over the southern coastline of Lake Ontario. The fireball wasn’t a surprise. Roughly 1 ...
• US Space Force Releases Decades of Bolide Data to NASA for Planetary Defense Studies
  2022-04-07
  Hosted by JPL’s Center for Near Earth Object Studies, the data can be used by the science community to better understand how asteroids break up when entering the atmosphere.
• Updated Calculations Refine the Impact Probability for (29075) 1950 DA
  2022-03-29
  (29075) 1950 DA is a kilometer-sized asteroid that will make a close approach to Earth in 2880 and, because of the corresponding impact probability and size, has ranked at the top of the Sentry risk list since 2014.
• NASA System Predicts Impact of Small Asteroid
  2022-03-15
  A small asteroid hit Earth’s atmosphere over the Norwegian Sea before disintegrating on March 11, 2022. But this event wasn’t a complete surprise: Astronomers knew it was on a collision course, predicting exactly where and when the impact would happen.
• NASA’s Next-Generation Asteroid Impact Monitoring System Goes Online
  2021-12-06
  To date, nearly 28,000 near-Earth asteroids (NEAs) have been found by survey telescopes that continually scan the night sky, adding new discoveries at a rate of about 3,000 per year. But as larger and more advanced survey telescopes turbocharge the search over the next few years, a rapid uptick in ...
• International Observation Campaign Will Assess Asteroid Timing Accuracies
  2021-10-07
  The International Asteroid Warning Network (IAWN) will conduct an observational campaign in November with the goal of assessing the accuracy of the observation times reported by asteroid observers.
• Planetary Radar Observes 1,000th Near-Earth Asteroid Since 1968
  2021-09-03
  On Aug. 14, 2021, a small near-Earth asteroid (NEA) designated 2021 PJ1 passed our planet at a distance of over 1 million miles (about 1.7 million kilometers). Between 65 and 100 feet (20 and 30 meters) wide, the recently discovered asteroid wasn’t a threat to Earth. But this asteroid’s approach ...
• NASA Spacecraft Provides Insight into Asteroid Bennu's Future Orbit
  2021-08-11
  In a study released Wednesday, NASA researchers used precision-tracking data from the agency's Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft to better understand movements of the potentially hazardous asteroid Bennu through the year 2300, significantly reducing uncertainties related to its future orbit, and improving scientists' ability to determine ...
• NASA Analysis: Earth Is Safe From Asteroid Apophis for 100-Plus Years
  2021-03-25
  After its discovery in 2004, asteroid 99942 Apophis had been identified as one of the most hazardous asteroids that could impact Earth. But that impact assessment changed as astronomers tracked Apophis and its orbit became better determined.Now, the results from a new radar observation campaign combined with precise orbit analysis ...

NASA Jet Propulsilon Laboratory:

• New Data Confirm 2020 SO to Be the Upper Centaur Rocket Booster From the 1960's
  2020-12-02
  The object, discovered in September by astronomers searching for near-Earth asteroids, garnered interest in the planetary science community due to its size and unusual orbit.
• MOXIE Could Help Future Rockets Launch Off Mars
  2020-11-24
  NASA's Perseverance rover carries a device to convert Martian air into oxygen that, if produced on a larger scale, could be used not just for breathing, but also for fuel.
• Independent Review Indicates NASA Prepared for Mars Sample Return Campaign
  2020-11-10
  A report, released Tuesday, concludes that the agency is well positioned for its ambitious plan to bring samples back from the Red Planet for further study on Earth.
• Impact Craters Reveal Details of Titan's Dynamic Surface Weathering
  2020-10-29
  New research on nine craters of Saturn's largest moon provides more details about how weathering affects the evolution of the surface - and what lies beneath.
• NASA InSight's 'Mole' Is Out of Sight
  2020-10-16
  Now that the heat probe is just below the Martian surface, InSight's arm will scoop some additional soil on top to help it keep digging so it can take Mars' temperature.
• This Transforming Rover Can Explore the Toughest Terrain
  2020-10-13
  Made of a pair of two-wheeled vehicles, NASA's DuAxel is designed to descend crater sides and near-vertical cliffs on the Moon, Mars, and beyond.
• NASA's Perseverance Rover Will Peer Beneath Mars' Surface
  2020-10-08
  The agency's newest rover will use the first ground-penetrating radar instrument on the Martian surface to help search for signs of past microbial life.
• AI Is Helping Scientists Discover Fresh Craters on Mars
  2020-10-01
  It's the first time machine learning has been used to find previously unknown craters on the Red Planet.
• School Bus-Size Asteroid to Safely Zoom Past Earth
  2020-09-22
  Roughly 15 to 30 feet wide, the object will make its closest approach on Sept. 24.
• Comet Discovered to Have Its Own Northern Lights
  2020-09-21
  An atmospheric light show previously relegated to planets and Jupiter moons is found on comet using data from ESA's Rosetta spacecraft.

Astronomy Now

• Catch Comet 2022 E3 (ZTF) this month
  2023-01-20
  Comet 2022 E3 (ZTF) is of special interest this January as at the time of writing (mid-November) it appears well on-course to be an easy binocular object and perhaps a marginal naked-eye comet.
• Geminid meteors burst out!
  2022-12-13
  Watch out tonight (13th/14th) and tomorrow night (14th/15th) for the welcome return of the Geminid meteor shower.

Univere Today

• JWST Unexpectedly Finds a Small Asteroid During ‘Failed’ Observations
  2023-02-06
  While astronomers and engineers were trying to calibrate one of the James Webb Space Telescope’s instruments last summer, they serendipitously found a previously unknown small 100–200-meter (300-600 ft) asteroid in the main asteroid belt. Originally, the astronomers deemed the calibrations as a failed attempt because of technical glitches. But they ...
• Curiosity Finds Another Metal Meteorite on Mars
  2023-02-04
  MSL Curiosity is going about its business exploring Mars. The high-tech rover is currently exploring the sulphate-bearing unit on Mt. Sharp, the central peak in Mars’ Gale Crater. Serendipity placed a metal meteorite in its path. The meteorite is made mostly of nickel and iron, and it has a name: ...

EarthSky

• Webb observes Chariklo’s rings during occultation
  2023-02-03
  NASA's Webb telescope took its 1st look at tiny asteroid Chariklo's rings, showing they contain water ice. Webb used a stellar occultation to observe the rings. The post Webb observes Chariklo’s rings during occultation first appeared on EarthSky.

The Planetary Society

• More worlds, anyone?
  2023-02-03
  The more we search, the more we find. From exoplanets to moons to asteroids, the list of worlds just keeps growing.
• Best space pictures of the month: January 2023
  2023-01-31
  A sample depot on Mars and a stunning green comet top this month's space highlights.
• Tianwen-2: China’s Near-Earth asteroid and comet double-header
  2023-01-19
  China is gearing up for an ambitious combined mission to collect samples from a near-Earth asteroid, deliver the material to Earth, and then head off back into deep space to study a comet.
• How to see Comet 2022 E3 (ZTF)
  2023-01-06
  Everything you need to know about Comet 2022 E3 (ZTF) or the "Green comet," which is making its first approach to Earth in 50,000 years.
• NEO Surveyor is confirmed
  2022-12-14
  After nearly two decades of consideration, NASA made a formal commitment to NEO Surveyor, an asteroid-hunting space telescope.
• Your guide to rings of the Solar System
  2022-12-08
  Tour the rings of Jupiter, Saturn, Uranus, and Neptune, plus asteroids, a dwarf planet, and an exoplanet.

Space Daily

• Will lunar rover Jade Rabbit have company for the next Lantern Festival?
  2023-02-07
  Beijing (XNA) Feb 07, 2023 Yutu 2, China's operating lunar rover, ignites people's fantasies of the moon on a special day, the Lantern Festival of the Year of the Rabbit. The festival this year falls on Sunday, the 15th day of the first month of the Chinese lunar calendar when a ...
• Webb detects extremely small main-belt asteroid
  2023-02-07
  Paris (ESA) Feb 07, 2023 A previously unknown 100-200-metre asteroid - roughly the size of Rome's Colosseum - has been detected by an international team of European astronomers using the NASA/ESA/CSA James Webb Space Telescope. Their project used data from the calibration of the Mid-InfraRed Instrument (MIRI), in which the team ...
• Small asteroid 'serendipitously' detected using James Webb telescope
  2023-02-07
  Washington (AFP) Feb 6, 2023 European astronomers using the James Webb Space Telescope have detected a previously unknown asteroid about the size of Rome's Colosseum in the main asteroid belt between Mars and Jupiter. The asteroid measuring between 300 and 650 feet (100 to 200 meters) in length is the ...

Phys.org

• Meteorites reveal likely origin of Earth's volatile chemicals
  2023-01-27
  Meteorites have told Imperial researchers the likely far-flung origin of Earth's volatile chemicals, some of which form the building blocks of life.
• New Mars Sample Receiving Project office in Houston will curate first samples returned from Mars
  2023-01-24
  NASA announced Thursday its new Mars Sample Receiving Project office, responsible for receiving and curating the first samples returned from the Red Planet, will be located at the agency's Johnson Space Center in Houston. The safe and rapid release of Mars samples after they return to Earth to laboratories worldwide ...
• We could spread life to the Milky Way with comets. But should we?
  2022-12-21
  Here's a thorny problem: What if life doesn't always appear on planets that can support it? What if we find more and more exoplanets and determine that some of them are habitable? What if we also determine that life hasn't appeared on them yet?
• Comet impacts could bring ingredients for life to Europa's ocean
  2022-12-15
  Comet strikes on Jupiter's moon Europa could help transport critical ingredients for life found on the moon's surface to its hidden ocean of liquid water—even if the impacts don't punch completely through the moon's icy shell.
• Space exploration goes underground
  2022-11-16
  Is there life in Martian caves?

• Webb detects extremely small main-belt asteroid
  2023-02-06
  A previously unknown 100-to-200-meter asteroid—roughly the size of Rome's Colosseum—has been detected by an international team of European astronomers using the NASA/ESA/CSA James Webb Space Telescope. Their project used data from the calibration of the Mid-InfraRed Instrument (MIRI), in which the team serendipitously detected an interloping asteroid.
• Curious comet's rare close approach
  2023-02-01
  Comet C/2022 E3 (ZTF) today makes its closest approach to Earth before likely leaving our solar system forever. At billions of years old and not seen since Neanderthals roamed, the green comet continues to intrigue as it grows an apparent third tail and unexpectedly—but intriguingly—failed to wow scientists when observed ...
• Numerical simulations of planetesimal formation reproduce key properties of asteroids, comets
  2023-02-01
  With simulations that go into finer details than ever before, Brooke Polak of the University of Heidelberg and Hubert Klahr at the Max Planck Institute for Astronomy (MPIA) have modeled a key phase in the formation of planets in our solar system: the way that centimeter-size pebbles aggregate into so-called ...

• Webb detects extremely small main-belt asteroid
  2023-02-06
  A previously unknown 100-to-200-meter asteroid—roughly the size of Rome's Colosseum—has been detected by an international team of European astronomers using the NASA/ESA/CSA James Webb Space Telescope. Their project used data from the calibration of the Mid-InfraRed Instrument (MIRI), in which the team serendipitously detected an interloping asteroid.
• Numerical simulations of planetesimal formation reproduce key properties of asteroids, comets
  2023-02-01
  With simulations that go into finer details than ever before, Brooke Polak of the University of Heidelberg and Hubert Klahr at the Max Planck Institute for Astronomy (MPIA) have modeled a key phase in the formation of planets in our solar system: the way that centimeter-size pebbles aggregate into so-called ...
• Researchers complete first real-world study of Martian helicopter dust dynamics
  2023-01-31
  Mars is a dusty planet. From tiny dust devils to vast storms that shroud the planet, dust is a constant challenge for research missions. That was especially true for Ingenuity, the rotorcraft that since February 2021 has been exploring Mars alongside NASA's Perseverance rover. Now, researchers at Stevens Institute of ...
• Investigations reveal more evidence that Mimas is a stealth ocean world
  2023-01-31
  When a Southwest Research Institute scientist discovered surprising evidence that Saturn's smallest, innermost moon could generate the right amount of heat to support a liquid internal ocean, colleagues began studying Mimas' surface to understand how its interior may have evolved. Numerical simulations of the moon's Herschel impact basin, the most ...
• How three dust specks reveal an asteroid's secrets
  2023-01-29
  The specks are tiny. No, really tiny. Smaller than the diameter of a hair. But they hold billions of years of history that reveal some of the secrets of asteroids.
• Perseverance takes a selfie to show off some of its samples
  2023-01-27
  One of the main jobs for the Perseverance Mars rover past few weeks has been collecting carefully selected samples of Mars rock and soil. These samples have been placed and sealed in special sample tubes and left in well-identified places so that a future sample return mission can collect them ...
• Video: The Sample Transfer Arm: A helping hand for Mars
  2023-01-27
  The mission to return Martian samples back to Earth will use a European 2.5 meter-long robotic arm to pick up tubes filled with precious soil from Mars and transfer them to a rocket for an historic interplanetary delivery.
• Meteorites reveal likely origin of Earth's volatile chemicals
  2023-01-27
  Meteorites have told Imperial researchers the likely far-flung origin of Earth's volatile chemicals, some of which form the building blocks of life.
• Green comet zooming our way, last visited 50,000 years ago
  2023-01-27
  A comet is streaking back our way after 50,000 years.
• Solar system formed from 'poorly mixed cake batter,' isotope research shows
  2023-01-26
  Earth's potassium arrived by meteoritic delivery service finds new research led by Carnegie's Nicole Nie and Da Wang. Their work, published in Science, shows that some primitive meteorites contain a different mix of potassium isotopes than those found in other, more-chemically processed meteorites. These results can help elucidate the processes ...

• Long-delayed ExoMars mission still dreams of 2028 launch
  2023-02-03
  War, budget cuts, a pandemic and a crash: For all its trials, Europe's ExoMars mission might be more deserving of the name Perseverance than NASA's Martian rover.
• Researchers complete first real-world study of Martian helicopter dust dynamics
  2023-01-31
  Mars is a dusty planet. From tiny dust devils to vast storms that shroud the planet, dust is a constant challenge for research missions. That was especially true for Ingenuity, the rotorcraft that since February 2021 has been exploring Mars alongside NASA's Perseverance rover. Now, researchers at Stevens Institute of ...
• Investigations reveal more evidence that Mimas is a stealth ocean world
  2023-01-31
  When a Southwest Research Institute scientist discovered surprising evidence that Saturn's smallest, innermost moon could generate the right amount of heat to support a liquid internal ocean, colleagues began studying Mimas' surface to understand how its interior may have evolved. Numerical simulations of the moon's Herschel impact basin, the most ...
• How cells could help Artemis astronauts exercise
  2023-01-26
  In 2033, NASA and China plan to send the first crewed missions to Mars. These missions will launch every two years when Earth and Mars are at the closest points in their orbits (Mars Opposition). It will take these missions six to nine months to reach the Red Planet using ...
• Asteroid coming exceedingly close to Earth, but will miss
  2023-01-26
  An asteroid the size of a delivery truck will whip past Earth on Thursday night, one of the closest such encounters ever recorded.
• Lucy spacecraft set to encounter new asteroid target
  2023-01-25
  NASA's Lucy spacecraft will add another asteroid encounter to its 4-billion-mile journey. On Nov. 1, 2023, the Southwest Research Institute-led Lucy mission will get a close-up view of a small main belt asteroid to conduct an engineering test of the spacecraft's innovative asteroid-tracking navigation system.

Science Daily

• Researchers complete first real-world study of Martian helicopter dust dynamics
  2023-01-31
  Researchers have completed the first real-world study of Martian dust dynamics based on Ingenuity's historic first flights on the Red Planet, paving the way for future extraterrestrial rotorcraft missions. The work could support NASA's Mars Sample Return Program, which will retrieve samples collected by Perseverance, or the Dragonfly mission that will ...
• Evidence that Saturn's moon Mimas is a stealth ocean world
  2023-01-31
  When a scientist discovered surprising evidence that Saturn's smallest, innermost moon could generate the right amount of heat to support a liquid internal ocean, colleagues began studying Mimas' surface to understand how its interior may have evolved. Numerical simulations of the moon's Herschel impact basin, the most striking feature on ...

BBC Science

• Newly discovered green comet comes close to Earth
  2023-02-01
  The cosmic ball of ice and dust is about to make its closest approach to our planet.

wired.com

• Did the Seeds of Life Ride to Earth Inside an Asteroid?
  2023-01-31
  Biological amino acids could have celestial or terrestrial roots. An experiment simulated their formation in deep space—but the mystery isn’t solved yet.

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