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A new study proposes how we could look for signs of self-replicating (Von Neumann) probes that would prove that the Solar System has been explored by an advanced extraterrestrial intelligence

Rocky exoplanets orbiting red dwarfs are in a tough spot. Their stars are known for violent flaring that can destroy their atmospheres. But it’s possible that asteroid impacts could later

If we take out all the matter, neutrinos, dark matter, cosmic rays, and radiation from the deepest parts of the voids the only thing left is empty space.

Cosmic inflation helps black holes grow quickly, but it can’t explain how supermassive black holes grew to billions of solar masses in less than 500 million years.

A new report outlines the benefits and obstacles to a lunar telescope. It comes from the Keck Institute for Space Studies, and presents an idea for a lunar optical interferometer.

With unprecedented detail, a team of astronomers led by MPE have imaged the youngest disks around new-born stars. Astronomers used to think that planet formation followed star formation. But these

An international team of astronomers using the combined powers of space-based and ground-based observatories, including the W.M. Keck Observatory and Subaru Telescope on Maunakea, Hawaiʻi Island, have discovered a brown

Before a supernova finally explodes, its progenitor ejects massive amounts of gas into its surroundings. When the doomed star finally explodes, its blast wave slams into this material. This is

Astronomers found a 3 billion-year-old white dwarf actively accreting material from its former planetary system. This discovery challenges assumptions about the late stages of stellar remnant evolution.

A research team with the Chinese Academy of Sciences (CAS) examined samples returned by the Chang’e-6 mission from the far side of the Moon. They identified minerals that appear to