Trillions of comets discovered orbiting alien planet systems (image)
Using the Atacama Large Millimeter Array, astronomers have discovered icy exocomet belts circling 74 different alien planetary systems.
Astronomers watch monster black hole spit out a light-year-long jet
Astronomers have witnessed a monster supermassive black hole erupting with a light-year-long jet traveling at one-third the speed of light.
Strange Earth ‘quasi-moon’ named Cardea, after goddess of door hinges
A quasi-moon of Earth has been given a name. It's Cardea, after the goddess of door hinges.
Earth’s elusive ‘ignorosphere’ could shed new light on auroras
Japanese scientists have created the first-ever long-term dataset about Earth's entire atmosphere, stretching all the way to space.
Finland becomes 53rd country to join the Artemis Accords for moon exploration
Finland just became the Artemis Accords' 53rd member nation, bolstering NASA's efforts to establish peaceful and cooperative international space exploration.
When you wish upon a star, is it already dead? An astronomer crunches the numbers
The stars we can see in the night sky are a lot closer and live a lot longer than you would think.
‘Heavy’ dark matter would rip our understanding of the universe apart, new research suggests
Dark matter can't be too heavy or it might break our best model of the universe, new research suggests.
3D structure of iconic Ring Nebula gives ‘a brand new view of an old astronomical friend’
We are staring "right down the barrel of it, which is really quite surprising to me — we're just lucky."
Gravitational waves offer a ‘cosmic DNA test’ for black holes
The size and spin of black holes can reveal how and where they were born, and gravitational waves offer a way to decode this information like a cosmic DNA test.
Scientists discover ‘sunken worlds’ hidden deep within Earth’s mantle that shouldn’t be there
A new way of measuring structures deep inside Earth has highlighted numerous previously unknown blobs within our planet's mantle. These anomalies are surprisingly similar to sunken chunks of Earth's crust but appear in seemingly impossible places.