Dark comets are comets that are so small, fast and/or chemically rare that they are difficult to see from Earth

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Willmore were expected to return home in February after their extended stay at the ISS, but NASA confirmed the two will be in space longer.

Dark matter's mass limit increased by an order of magnitude, impacting our understanding of the universe's invisible substance.

The cosmos began expanding with the Big Bang but then around 10 billion years later it strangely began to accelerate thanks to a theoretical phenomenon termed dark energy. Credit: NASA One of science’s biggest mysteries is dark energy.

The Nancy Grace Roman Space Telescope team at NASA has completed the integration of the telescope and its instruments onto the carrier, a significant milestone in the assembly process. With the Coronagraph Instrument and the Optical Telescope Assembly in place,

NASA will resume its annual long-duration balloon operation in Antarctica by launching two flights in mid-December for planned nine missions to near space.

In case dark matter didn't seem mysterious enough, a new study proposes that it could have arisen before the Big Bang.

Some of this stuff is known as mysterious dark matter, others are things like dark comets, which as their name suggests, are far more difficult to see from Earth than something like Tsuchinshan-Atlas.

Forget fiction, 2025 is making the impossible inevitable. Who’s ready to charge their phones with nuclear energy and have lunch on the moon?

The James Webb Space Telescope was designed and built to study the early universe, and hopefully revolutionary our understanding of cosmology. Two years after its launch, it’s doing just that. One of the first things that astronomers noticed with the James Webb was galaxies that were brighter and larger than our models of galaxy formation

A groundbreaking astronomical discovery has unveiled millinovas, a previously unknown type of cosmic explosion that shines 100 times brighter than the Sun. These explosions, detected by researchers analyzing data from satellite galaxies of the Milky Way,