Mercury, Venus, Neptune, Saturn, Uranus and Jupiter will appear together shortly after sunset on Feb. 28 — but is this the ...

The other two known interstellar comets did not offer such an opportunity.

One of the brightest stars in the night sky will vanish as seen from North America and Europe in a rare event.

SpaceX is targeting a mid-June initial public offering that would coincide with a rare planetary alignment and founder Elon ...

Scientists are uncovering new clues that a cosmic explosion may have rocked Earth at the end of the last ice age. At major Clovis-era sites, researchers found shocked quartz—evidence of intense heat ...

Is it alien? Is it natural? Those questions have followed the interstellar comet known as 3I/ATLAS since it entered our solar system last year from beyond our own star system. A new study released ...

If you’ve ever seen a brilliant strategy fade in PowerPoint slides or planning documents, you’re not alone. Most organizations don’t struggle to create ideas; they struggle to align people, decisions ...

Sorry, '2001: A Space Odyssey' fans, but the cosmic menace in the Gerard Butler disaster series has a more ordinary inspiration. Reading time 2 minutes Greenland was ...

The response came after John Greenewald Jr., an American researcher and ufologist, requested any CIA "assessments, reports, or communications" referencing the interstellar object, only the third of ...

The depths of interstellar space have thrown another cosmic puzzle into our solar system. The most recent information about the visitor known as 3I/ATLAS has astronomers both confused and interested.

Interstellar comet 3I/ATLAS is seen in this composite image captured on Nov. 6 by the Europa Ultraviolet Spectrograph instrument on NASA’s Europa Clipper spacecraft, from a distance of around 102 ...