It's only the third object in history from outside our solar system to be discovered cruising through our area of space.

On December 19, avid skywatchers can catch a glimpse of the mysterious visitor through powerful binoculars or a telescope when it’s around 170 million miles from our home planet ...

NASA is preparing to turn the center of our own galaxy into a precision test bed, using the Nancy Grace Roman Space Telescope ...

Know when Comet 3I/ATLAS makes its closest approach to Earth and how to watch this rare event. Learn why astronomers are ...

If you feel a thrill every time we discover something new about the cosmos, then November 25th may have been a noteworthy day ...

The comet will reach its closest point to Earth at 1am EST (6am GMT) today, coming within 270 million kilometers of us. ...

This week, Earth will get its best chance to steady an interstellar comet as it makes its closest approach to the planet.

With construction complete, the telescope will now move into final testing. Following testing, Roman will be packaged and ...

The interstellar comet is set to make its closest flyby on December 19, a date everyone has been waiting for. You can catch ...

Learn how Mount Wilson Observatory was founded on Dec. 20, 1904, the people involved, and the decisions that shaped early modern astronomy ...

By studying tiny distortions in the shapes of distant galaxies, scientists mapped dark matter and dark energy across one of the largest sky surveys ever assembled. Their results back the standard ...

The comet has been the centre of attraction worldwide ever since it was discovered earlier this year, with several rumours ...