Related topics: nasa

Asteroid grazes past Earth in 'critical' rehearsal

A house-sized asteroid grazed past Earth Thursday, passing harmlessly inside the Moon's orbit, as predicted, to give experts a rare opportunity to rehearse for a real strike threat in future.

Close approach of asteroid 2012 TC4 poses no danger to Earth

The house-sized asteroid 2012 TC4 is slated to give Earth a close shave on Thursday, October 12, swooshing by our planet at approximately 5:41 UTC (1:41 a.m. EDT) at a distance of about 31,000 miles (50,000 kilometers). Although ...

'Halos' discovered on Mars widen time frame for potential life

Lighter-toned bedrock that surrounds fractures and comprises high concentrations of silica—called "halos"—has been found in Gale crater on Mars, indicating that the planet had liquid water much longer than previously ...

A facelift for the Moon every 81,000 years

The Moon is bombarded by so much space rock that its surface gets a complete facelift every 81,000 years, according to a study released Wednesday based on NASA data.

At sea, scientists drill into crater for dino clues

Sharks swim around a platform off Mexico's east coast as scientists drill deep into the ocean floor, extracting the remains of the asteroid widely blamed for the demise of the dinosaurs.

These space rocks could save the planet

The box was inconspicuous, but Lawrence Livermore National Laboratory (LLNL) postdoctoral researcher Megan Bruck Syal immediately knew its contents: two meteorites around the size of walnuts. They formed about 4.6 billion ...

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