The idea that life on Earth arose through a series of improbable "hard" evolutionary steps may be misjudged, according to a ...

The world is watching as NASA tweaks the odds that asteroid 2024 YR4 will hit Earth. But how threatening is YR4, and how does ...

While the U.S. Space Force, and its previous operator the U.S. Air Force, have been tightlipped about what the space plane ...

New observations have dramatically reduced the chances of asteroid 2024 YR4 hitting Earth in 2032, lowering the risk to the planet to minimal levels, but the extraordinary close approach will now offe ...

NASA has selected SpaceX to develop the U.S. Deorbit Vehicle, which will be responsible for guiding the ISS to its end of ...

Sensational "city killer" headlines aside, NASA and the European Space Agency reported the asteroid "has a very small chance" ...

Since early January, Chinese scientists have been continuously observing an asteroid that has a small chance of colliding ...

The technique is pretty straightforward and potentially very cheap, but will need to be scaled up significantly to make a difference.

Why does a recent study led by renowned climate scientist James E. Hansen suggest that limiting global temperature rise to ...

NASA increased the chances of asteroid 2024 YR4 hitting Earth to 1 in 32, or 3.1%, on Tuesday, but they're now back down to 1 ...

Science enthusiasts are closely watching asteroid 2024 YR4, the most hazardous asteroid ever detected. Westmont College ...

YR4 has a very small chance of striking Earth when its orbit briefly intersects our planet's in December 2032.