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Discover Magazine on MSN1d
Origins of Water on Earth May Not Have Started with an Asteroid Impact
The chemical composition of a meteorite that was built much like early Earth shows evidence of ample hydrogen necessary to ...
Space on MSN17h
'Planetary defense is knowing what's out there and what could do harm to us.' Meet the scientist who helped build NASA's asteroid response plan
A Q&A with Lindley Johnson, a pioneer in blueprinting warning and response scenarios to any potential impact of Earth by an ...
Massive asteroid could slam into moon in 2032, will it impact Earth?
YR4, once flagged as a potential Earth threat, is now being tracked for a possible Moon impact in 2032, with a 3.8% chance of ...
City-killer asteroid won’t hit earth, but might slam into moon in 2032
YR4, once considered a potential Earth threat, now poses a 3.8% chance of hitting the Moon in 2032. Initially, NASA flagged a ...
MIT Technology Review1d
Meet the researchers testing the “Armageddon” approach to asteroid defense
A nuclear explosion might eventually be Earth’s only way to protect itself from a dangerous asteroid. But preparing for that ...
Why the meteorites that hit Earth have less water than the asteroid bits brought back by space probes
Much of what scientists know about the early solar system comes from meteorites—ancient rocks that travel through space and ...
Futurism on MSN6d
Asteroid That Threatened Earth Shaped Like a Saucer, Scientists Find With Large Telescope
After taking another peek at the "city-killer" asteroid that once had a small but uncomfortable chance of smashing into our ...
The Conversation2d
Why the meteorites that hit Earth have less water than the asteroid bits brought back by space probes – a planetary scientist explains new research
Among meteorites, one type – called carbonaceous chondrites – stands out as the most primitive and provides ... study these ancient rocks has driven recent sample-return space missions.