When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...

In space, the gravitational pull of massive objects is irresistible to smaller ones. Moons are locked in orbit around planets. Planets, asteroids and comets orbit more massive stars, and stars collect ...

Crew Dragon has never shone brighter. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new video from humanity's largest orbital laboratory is a ...

A long-standing scientific belief holds that stars tend to hang out in the same general part of a galaxy where they originally formed. Some astrophysicists have recently questioned whether that is ...

Astronomers watched how the light brightened and dimmed near the event horizon of the Milky Way's supermassive black hole, ...

Spectroscopy of other stars has led to most discoveries of exocomet systems. In research led by University of Colorado ...

The Sun's structure includes the photosphere (visible surface), chromosphere (reddish layer above the photosphere), and corona (outermost layer with extremely high temperatures). The Sun emits a ...

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Tiny crystals in Earth’s crust may have recorded meteorite and comet impacts as our planet traveled through the spiral arms of the Milky Way over more than 4 billion years, according to new research.

Astronomers have uncovered what appear to be 21 neutron stars in orbit around stars like our Sun. The discovery is surprising because it is not clear how a star that exploded winds up next to a star ...

This image released by the Event Horizon Telescope Collaboration, May 12, 2022, shows a black hole at the center of our Milky Way galaxy. The Milky Way black hole is called Sagittarius A*, near the ...