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Interstellar visitor 3I/ATLAS might be oldest comet yet
Astronomers have modeled the path of interstellar comet 3I/ATLAS through the Milky Way galaxy. They said the comet might be 7 billion years old.
July 11, 2025
A deep-space navigation 1st, from New Horizons
New Horizons - which visited Pluto - has now performed a deep-space navigation 1st, determining its own position via star images.
July 11, 2025
Is the Milky Way teeming with satellite galaxies?
Astronomers used new models and simulations of the Milky Way to show our galaxy should have 80 to 100 more satellite galaxies than we've spotted.
July 10, 2025
NASA’s DART mission unleashed a blitz of boulders into space
Space rocks ejected during the DART mission carried 3 times more momentum than the spacecraft itself. This factor could influence planetary defense missions.
July 9, 2025
Probing the Cosmic Dark Ages from the far side of the moon
Researchers are planning the CosmoCube mission to travel to the far side of the moon, an area of radio silence, to listen to whispers from the cosmic Dark Ages.
July 9, 2025
Small planets are common around small stars, says new study
A team of astronomers led by Heidelberg University in Germany have found that small planets like Earth are common around small, low-mass red dwarf stars.
July 9, 2025
Airport radar could signal our existence to aliens
Airport radar leaks electromagnetic energy into space. These signals are strong enough that aliens 200 light-years away would be able to detect our presence.
July 8, 2025
Earth could be in a void, Big Bang sound waves suggest
New research says sound waves from the Big Bang support the idea that Earth is in a huge void, which could explain the Hubble tension.
July 8, 2025
New clues to how galaxies sustain star formation
High-velocity gases in Messier 83 originate from outside the galaxy, explaining how galaxies can sustain star formation over billions of years.
July 8, 2025
Did something just hit Saturn? See the image here!
Did something hit Saturn, resulting in a bright flash on July 5, 2025? Possibly! We await confirmation from other observers. Find out more here.
July 7, 2025
