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

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,

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

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.

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 Kinetic-scale Energy and momentum Transport experiment -- KiNET-X -- lifted off from NASA's Wallops Flight Facility in ... Dark Energy 'Doesn't Exist' So Can't Be Pushing 'Lumpy' Universe ...

Find out about the recent developments regarding the Roman Space Telescope and how they might bring us closer to understanding the universe.

Ultra-sensitive detectors have observed neutrinos from the Sun, whose signals mimic those expected to be produced by elusive dark matter.

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.

A massive, energetic jet from Virgo A could help scientists understand how matter behaves around a black hole.

The water that makes up the oceans acted as a key ingredient for the development of life on Earth. However, scientists still do not know where the water here on Earth came from in the first place.