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 ...

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 ...

The annual Badlands Astronomy Festival brings together space science professionals, amateur astronomers, educators, and ...

The first ever space telescope, the Orbiting Astronomical Observatory 2 (OAO-2), was launched into the low Earth orbit in ...

Mercury is the month's highlight, reaching greatest elongation July 4. Also on show in the Southern Hemisphere: Mars, Saturn, ...

In February 2025, a stunning planetary alignment–also known as the planet parade–allowed observers to see seven planets in the night sky simultaneously: Mercury, Venus, Mars, Jupiter, Saturn, Uranus, ...

How many Earth-like exoplanets orbit M dwarf stars (Red dwarf stars), which are smaller and cooler than our Sun? This is what ...

Beloved sci-fi series The Expanse finds astounding new streaming success three years after it was cancelled at Syfy.

Hubble captures three infant stars lighting up a blue nebula, with a secret protostar forming in a shadowed disc below.