Use the bright star Sirius, in the constellation Canis Major, as a starting point to locate M46 in the constellation Puppis.

The smoking gun of the creation of lithium in explosions on white dwarf stars may have been found, in a spike of gamma rays ...

The constellation Lyra is faint, but it contains Vega, one of the brightest stars in our Butler night sky. As soon as it gets ...

Goar’s passion is the Dark Sky Telescope Program that runs through Sept. 21, and that takes place in the Hurricane Ridge ...

Such changes would make it difficult for life as we know it to survive on Earth. The increased heat and radiation would ...

The moon will reach its peak at 4:37 p.m. EDT on July 10. During moonrise the lunar disk appears larger than it is as it is ...

The comet will zip past Mars’s orbit and reach its closest point to the Sun on 29 October 2025, at 1.35 astronomical units.

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Ancient meteorite reveals a protoplanet formed in the outer Solar System earlier than thought, reshaping planet formation ...

The University of Arizona’s Lunar and Planetary Laboratory will welcome one of the world’s leading scientists in asteroid detection and planetary defense to its staff this fall.

The Celestron NexStar 8SE is the cheapest we've seen it since January — this deal is one to watch during Prime Day.

These are the best star projectors on the market ahead of Amazon Prime Day, as there's something to suit all needs and budgets out there.