Deep Impact, launched Jan. 12, carries an "impactor" that will be released to collide with the comet, possibly creating a stadium-size gouge while the spacecraft's instruments collect data on the ...

In 2024, scientists studying ancient sediments in the eastern United States reported signs of a comet exploding in Earth’s skies 12,800 years ago. That event, they suggested, might have plunged the ...

Tiny metallic beads found in deep Arctic mud have sparked a renewed debate about why Earth experienced a sudden chill 12,800 ...

NASA has until Jan. 28 to launch Deep Impact. After that, Tempel 1 will be beyond rocket reach and scientists will have to pick another comet and swallow a lengthy delay.

NASA’s Hubble Space Telescope has snapped images of a recently discovered interstellar visitor hurtling through our solar ...

Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's ...

NASA Astronomers make groundbreaking discovery about largest comet ever observed flying through deep space Massive 85-mile-wide frozen giant comet observed near Neptune using powerful telescope in ...

Twenty years ago, when NASA's Deep Impact spacecraft was deliberately sent to collide with comet 9P/Tempel, it hit a relatively smooth surface, which was reflected in a smooth and continuous ...

Astronomers recently got a close-up look at the comet, known as C/2014 UN271, flying through deep space with the powerful Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope in Chile.

Hubble has taken the clearest image to date of the interstellar comet 3I/ATLAS, which is racing through our solar system at ...