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Ever wonder why some meteor showers are so unpredictable
Los Angeles CA (SPX) Apr 22, 2025 A newly published study by SETI Institute researchers suggests that the irregularity of certain meteor showers arises not from chaotic planetary influences but from the subtle, yet consequential, motion of the Sun itself. The findings, presented in the journal Icarus, offer a fresh perspective on the long-term behavior of comets and their meteoroid trails. "Contrary to popular conception, everything in the solar system does not orbit the Sun," explained Stuart Pilorz, lead author and SETI Institut ... read more |
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Carbon reactions during impacts reveal why meteorites seem less shockedTokyo, Japan (SPX) Apr 28, 2025 A mystery that has puzzled planetary scientists for three decades-why carbon-bearing meteorites appear less damaged by impacts than their carbon-poor counterparts-has been solved by researchers at K ... more 
A little bit of space on EarthBerlin, Germany (SPX) Apr 22, 2025 There is a large diversity in the chemical composition of astronomical objects such as planets, comets, circumstellar envelopes, or galactic gas clouds. One great challenge in astrochemistry is to u ... more 
NASA's Lucy Spacecraft Images Asteroid DonaldjohansonSan Antonio TX (SPX) Apr 23, 2025 In its second asteroid encounter, NASA's Lucy spacecraft obtained a close look at a uniquely shaped fragment of an asteroid that formed about 150 million years ago. The spacecraft has begun returnin ... more 
NASA's Lucy Spacecraft Prepares Second Asteroid EncounterSan Antonio TX (SPX) Apr 15, 2025 NASA's Lucy spacecraft is 6 days and less than 50 million miles (80 million km) away from its second close encounter with an asteroid; this time, the small main belt asteroid Donaldjohanson. T ... more |
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NASA Webb Telescope Sizes Up Small Asteroid with Big ImplicationsLos Angeles CA (SPX) Apr 10, 2025 NASA's James Webb Space Telescope has provided critical new data on asteroid 2024 YR4, confirming that this near-Earth object poses no significant risk of impact in 2032 or the foreseeable future. ... more
Life rebounded quickly after dinosaur-killing impactLos Angeles CA (SPX) Apr 10, 2025 Roughly 66 million years ago, a colossal asteroid collided with Earth, triggering the mass extinction of the non-avian dinosaurs and wiping out approximately 70% of marine species. But new research ... more
NASA Webb Measures Size and Surface of Near-Earth Asteroid 2024 YR4Los Angeles CA (SPX) Apr 03, 2025 NASA's James Webb Space Telescope has observed asteroid 2024 YR4, revealing it to be roughly 60 meters in diameter-about the height of a 15-story building-and confirming it poses no significant thre ... more
Mammals were shifting to ground life long before dinosaur extinctionLondon, UK (SPX) Apr 03, 2025 New findings from the University of Bristol suggest that mammals had begun transitioning from arboreal habitats to terrestrial ones several million years prior to the asteroid strike that caused the ... more
NASA says asteroid 2024 YR4 size of a 10-story building; increases chances of moon impactWashington DC (UPI) Apr 3, 2025 NASA said that an asteroid previously believed to be destined for Earth is the size of a 10-story building and is now more likely to make impact with the moon. ... more |
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Rising odds asteroid that briefly threatened Earth will hit Moon
Paris (AFP) April 3, 2025 An huge asteroid that was briefly feared to strike Earth now has a nearly four percent chance of smashing into the Moon, according to new data from the James Webb Space Telescope. The asteroid, thought to be capable of levelling a city, set a new record in February for having the highest chance - 3.1 percent - of hitting our home planet than scientists have ever measured. Earth's planetary defence community leapt into action and further observations quickly ruled out that the asteroid - call ... read more 
Key Component for NASAs NEO Surveyor Returns to JPLLos Angeles CA (SPX) Apr 02, 2025 NASA's Near-Earth Object (NEO) Surveyor mission is on track for a planned launch in late 2027, with a major milestone recently achieved. A critical part of the spacecraft-its instrument enclosure-re ... more |
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In the asteroid belt a mudball meteorite defied the odds Los Angeles CA (SPX) Apr 01, 2025 An international team of scientists has unraveled the story behind the April 2019 fall of rare meteorites near Aguas Zarcas in northern Costa Rica, highlighting that these so-called "mudball" meteor ... more 
Meteorite origins mapped to regions of asteroid beltLos Angeles CA (SPX) Mar 19, 2025 A comprehensive review in *Meteoritics and Planetary Science* reveals how astronomers have traced the source of various meteorite types to specific, previously unknown regions within the asteroid be ... more
New Modeling Assesses Age of Next Target Asteroid for NASA's LucySan Antonio TX (SPX) Mar 18, 2025 Although NASA's Lucy spacecraft's upcoming encounter with the asteroid Donaldjohanson is primarily a mission rehearsal for later asteroid encounters, a new paper suggests that this small, main belt ... more 
UAE Space Agency advances asteroid exploration mission with design milestoneParis, France (SPX) Mar 18, 2025 The Emirates Mission to the Asteroid Belt (EMA) has successfully completed its Critical Design Review (CDR), a pivotal milestone in the project, held from February 24 to 26 with participation from E ... more 
Hera asteroid mission captures images of Mars moon DeimosParis, France (SPX) Mar 14, 2025 During a recent flyby of Mars, ESA's Hera mission for planetary defense utilized its scientific payload beyond Earth and the Moon for the first time. The spacecraft activated a suite of instruments ... more |
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