Mars may once have had a much larger moon

The Gale crater on Mars ZUMA Press, Inc./Alamy A Mars crater may have once contained water…

Earth and solar system may have been shaped by nearby exploding star

SNR 0519, the remnant of a supernova that exploded about 600 years ago Claude Cornen/ESA/Hubble &…

Comets were on fire this year – for better or worse

Comet Lemmon, photographed from northern Italy on 26th October 2025 Marcel Clemens/Alamy I don’t think anyone…

Why we only recently discovered space is dark not bright

Adobe Stock Photo/Phoebe Watts A blue Earth ascends over the barren surface of the moon, against…

Odd elements in supernova blast might have implications for alien life

The supernova remnant Cassiopeia A NASA/JPL-Caltech/O. Krause (Steward Observatory) Hidden within Cassiopeia A, the youngest known…

Comet 3I/ATLAS from beyond solar system carries key molecule for life

Comet 3I/ATLAS is only the third known visitor to our solar system from elsewhere International Gemini…

Planned satellite launches could ruin Hubble Space Telescope images

A simulated image representing the projected contamination by satellite trails in a future space telescope image…

Forming moon may have taken three big impacts early in Earth’s history

The moon may have had a more complicated birth than we thought NASA/NOAA Multiple impacts on…

Asteroid Bennu carries all ingredients to kick-start life as we know it

The OSIRIS-REx sample NASA/Erika Blumenfeld & Joseph Aebersold All the essential ingredients to kick-start life as…

What would Russia’s inability to launch crewed missions mean for ISS?

The Soyuz spacecraft blasting off on 27 November Roscosmos space corporation, via AP/Alamy The International Space…