Day and night will get equal time for a brief moment as the equinox arrives. The Earth will experience about the same amount ...

Three missions aimed at observing space weather are set to launch Sept. 23 from Florida. Here's what to know about NASA's IMAP and more.

Gravitational waves can be described as ripples in the fabric of space-time, generated by the acceleration of massive objects. These waves travel at the speed of light and are often produced during ...

Monday is the first day of Fall for us in the northern hemisphere. It is the first day where there will be more darkness than ...

Sky This Week is brought to you in part by Celestron. Friday, September 19The Moon passes 0.8° north of Venus and 1.3° north ...

The polarization pattern around M87* — the first black hole to be directly imaged by the Event Horizon Telescope — has ...

Watch the crescent moon, Venus and the bright star Regulus align in a rare predawn close conjunction tomorrow.

Meteorological fall started on September 1. So far, it has been hot and dry to start out fall and September. Next week we ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet ...

Astronomers at Penn State have nicknamed the objects “universe breakers,” which may be unusual black hole atmospheres and could represent a missing link in the fast growth of supermassive black holes.

A strange “Einstein Cross” with an extra, impossible fifth image has revealed the hidden presence of a massive dark matter ...