Arrokoth is composed of two separate bodies, 3 and 9 miles across. In the distant past they rotated so slowly about each other that their mutual gravitational attraction caused them to come together ...

This January, the night sky is putting on a show like no other. A rare parade of six planets will align, creating a celestial ...

A six-planetary alignment will occur around Jan. 21. Venus, Mars, Jupiter, Saturn, Uranus, and Neptune will appear in one ...

There has been a great deal of hype on social media about a “great planetary alignment” of planets occurring on Jan. 25, when ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

Have you read on social media about the “once in 396 billion years” planetary alignment happening on Jan. 25? Guess what? Social media is not reliable. Here’s what’s really going on — and why you ...

The shells of carbon-rich dust are expanding outward into space at the breakneck velocity of 1,600 miles per second.

NASA’s Goldstone Solar System Radar is closely tracking asteroid 2024 PT5 during its nearest approach to Earth, a distance ...

The year 2025 will be amazing for astronomy enthusiasts, with several planetary alignments predicted. The most significant ...

Do all exoplanets known as “hot” Jupiters orbit alone in their respective solar systems, as has long been observed? This is what a recent study | Space ...

The six planets will be visible in the days immediately leading up to Jan. 21, and for about four weeks afterward. Mars, ...

"There are still many things related to planetary formation and the early evolution of young planetary systems that we don't ...