Asteroids
Dust from a giant asteroid crash caused an ancient ice age  PHYS.ORG · 9 hours
About 466 million years ago, long before the age of the dinosaurs, the Earth froze. The seas began to ice over at the Earth's poles, and... more
Dust from a giant asteroid crash caused an ancient ice age  SCIENCE DAILY · 9 hours
About 466 million years ago, long before the age of the dinosaurs, the Earth froze. The seas began to ice over at the Earth's poles, and... more
AIDA collaboration highlights case for planetary defence  PHYS.ORG · 11 hours
Surprising results from recent asteroid missions have highlighted the importance of testing planetary defence strategies in space, according to scientists participating in the joint ESA/NASA Asteroid Impact and Deflection Assessment (AIDA) collaboration. The unexpectedly... more
Asteroid orus occultation observed for the first time ever by eVscope  PHYS.ORG · 16 hours
On September 7, 2019, a Unistellar team flew to Oman and successfully used the eVscope to observe an occultation of the asteroid Orus for the first... more
Stony-iron meteor caused August impact flash at Jupiter  PHYS.ORG · 2 days
Analysis of a bright flash in Jupiter's atmosphere observed by an amateur astronomer in August 2019 has revealed that the likely cause was a small asteroid with a density typical of stony-iron... more
Rare metallic asteroids might have erupted molten iron  PHYS.ORG · 2 days
The metallic asteroid Psyche has mystified scientists because it is less dense than it should be, given its iron-nickel composition. Now, a new theory could explain Psyche's low density and metallic surface. more
Research redefines lower limit for planet size habitability  PHYS.ORG · 1 week
In The Little Prince, the classic novella by Antoine de Saint-Exupéry, the titular prince lives on a house-sized asteroid so small that he can watch the sunset any time of day by... more
A burst of asteroid activity in Europe  ESA · 1 week
The next few days will see a rare convergence of asteroid-related activity in Europe, as planetary defence and other experts meet in... more
Rocks at asteroid impact site record first day of dinosaur extinction  SCIENCE DAILY · 1 week
The research centers on the asteroid impact that wiped out non-avian dinosaurs, with the researchers getting the most detailed look yet of the aftermath that followed... more
3 Asteroids Are Zipping Past Earth Today  LIVE SCIENCE · 1 week
Hundreds of orbiting comets and asteroids are thought to present some risk of colliding with Earth, but the threat is typically very small. more
Rocks at asteroid impact site record first day of dinosaur extinction  PHYS.ORG · 1 week
When the asteroid that wiped out the dinosaurs slammed into the planet, the impact set wildfires, triggered tsunamis and blasted so much sulfur into the atmosphere... more
'Martian CSI' reveals how asteroid impacts created running water under red planet  PHYS.ORG · 2 weeks
Modern analysis of Martian meteorites has revealed unprecedented details about how asteroid impacts help create temporary sources of running water on the red planet. more
Astronomers Find Color-Shifting Asteroid  SCI-NEWS.COM · 2 weeks
Astronomers using the NASA Infrared Telescope Facility have caught an active asteroid called (6478) Gault in the act of changing color — in the near-infrared spectrum — from... more
Europe and US teaming up for asteroid deflection  PHYS.ORG · 2 weeks
Asteroid researchers and spacecraft engineers from the US, Europe and around the world will gather in Rome next week to discuss the latest progress in their common goal: an ambitious double-spacecraft mission... more
Europe and US teaming up for asteroid deflection  ESA · 2 weeks
Asteroid researchers and spacecraft engineers from the US, Europe and around the world will gather in Rome next week to... more
Newly Discovered Giant Planet Slingshots Around Its Star  ASTRO WATCH · 3 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its... more
For the first time, astronomers catch asteroid in the act of changing color  PHYS.ORG · 3 weeks
Last December, scientists discovered an "active" asteroid within the asteroid belt, sandwiched between the orbits of Mars and Jupiter. The space rock,... more
OSIRIS-REx's final four sample site candidates in 3-D  PHYS.ORG · 3 weeks
This animated flyover of each of the four candidate sample collection sites on asteroid Bennu, selected by NASA's OSIRIS-REx asteroid sample return mission, was produced using close-range data from the OSIRIS-REx Laser... more
By continuously watching the moon, we could detect interstellar meteorites  PHYS.ORG · 3 weeks
When "Oumuamua crossed Earth's orbit on October 19th, 2017, it became the first interstellar object ever to be observed by humans. These and subsequent observations, rather than dispelling... more
Hypervelocity impacts as a source of deceiving surface signatures on iron-rich asteroids  Science Magazine · 3 weeks
Several arguments point to a larger proportion of metal-rich asteroids than that derived from spectral observations, as remnants of collisional disruptions of differentiated bodies.... more
Newly discovered giant planet slingshots around its star  SCIENCE DAILY · 3 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system,... more
Newly discovered giant planet slingshots around its star  PHYS.ORG · 3 weeks
Astronomers have discovered a planet three times the mass of Jupiter that travels on a long, egg-shaped path around its star. If this planet were somehow placed into our own solar system,... more
Stardust in the Antarctic Snow  ASTRO WATCH · 4 weeks
The quantity of cosmic dust that trickles down to Earth each year ranges between several thousand and ten thousand tons. Most of the tiny particles come... more
New images from asteroid probe yield clues on planet formation (Update)  PHYS.ORG · 4 weeks
Photographs snapped by a shoebox-sized probe that explored the near-Earth asteroid Ryugu offer new clues about its composition, insights that are expected to help scientists understand... more
New images from asteroid probe offer clues on planet formation  PHYS.ORG · 4 weeks
Photographs snapped by a shoebox-sized probe that explored the near-Earth asteroid Ryugu have offered new clues about its composition, insights that will help scientists understand the formation of... more
Images from the surface of asteroid Ryugu show rocks similar to carbonaceous chondrite meteorites  Science Magazine · 4 weeks
The near-Earth asteroid (162173) Ryugu is a 900-m-diameter dark object expected to contain primordial material from the solar nebula. The... more
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