July’s predawn sky offers some rare events, providing another reason to get outdoors to enjoy the relatively cool mornings.” ...

Mercury’s risk of orbital disruption rises by 50–80%. There’s a 0.3% chance Mars could be lost through collision or ejection, ...

For millennia, the way we found our way home has been using the stars. The tech we have sent towards those stars also uses ...

A unique new material that shrinks when it is heated and expands when it is cooled could help enable the ultra-stable space telescopes ...

An exoplanet is any planet beyond our solar system. Most of them orbit other stars, but some free-floating exoplanets, called ...

Mercury reaches its greatest elongation, 26 degrees east of the sun on July 4. From latitude 40 degrees north, the ...

Artist's impression of Planet Nine – a suspected “wide-orbit” planet – with the Sun in the distance; Neptune's orbit is shown ...

Made from over 1,100 images captured by NSF-DOE Vera C. Rubin Observatory, the video begins with a close-up of two galaxies ...

The universe is a happening place—full of exploding stars, erupting black holes, zipping asteroids, and much more. The Rubin Observatory released its first images last week, and they’re stunning—vast, ...

Named TOI-4465 b, the exoplanet caught astronomers' attention as it acts as a bridge between scorching gas giants and ice ...

Venus continues to be the “Morning Star” in the east before dawn, albeit it has become dimmer — but still bright — as it ...