NASA's head of planetary defence has revealed what keeps her up at night - tens of thousands of 'city killer' asteroids that remain undetected.

Senior figures at NASA have issued a stark warning regarding the safety of Earth from space-borne threats. Speaking at a major science conference, planetary defence experts revealed that thousands of ...

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She’s worried about the a-rock-alypse. A planetary defense expert is warning that humanity is defenseless against up to 15,000 undetected near-Earth asteroids that have the potential to take out a ...

The internet creator and author wants to continue helping people fuel their curiosity with his brother, John Green Meredith Wilshere is a Society and Culture writer at PEOPLE. Her work has previously ...

"The tools we are building are about our planetary future." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest ...

Astronomers do not know where thousands of “city-killer” asteroids are, Nasa’s head of planetary defence has admitted.

BREEZES TO USHER IN THE NEXT STORM. BRIAN HAS A LOOK AT THE COMMUTE. NOT GOOD. RIGHT NOW WE HAVE BREAKING NEWS. THIS IS IN FOLSOM. THIS IS FOLSOM BOULEVARD, AND THIS IS RIGHT FROM THE CAMERA AT ...

CRANS-MONTANA, Switzerland — Lindsey Vonn crashed in her final downhill before the Milan Cortina Winter Olympics on Friday and was left limping and keeping weight off her left knee — a troublesome ...

PITTSBURGH — A multi-vehicle crash shut down the northbound lanes of Route 28 in Pittsburgh on Monday morning. The interstate was closed to traffic at the 31st Street Bridge/Strip District exit for ...

Two early morning crashes that snarled traffic Friday — including a fatal crash that shut down the westbound Long Island Expressway in Queens for hours — have been cleared, police and transportation ...

"This confirms that life's building blocks can be formed in a diversity of environments throughout the universe." When you purchase through links on our site, we may earn an affiliate commission. Here ...