About half of the non-dark matter in the universe cannot be accounted for by stars and galaxies alone. Now, scientists say ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

As the Hubble Space Telescope approaches 35 years since its launch, marking over three decades of incredible images of the universe and science, NASA and its partner, the European Space Agency, are ...

Learn how astronomers found the invisible ionized gas that forms puffy halos surrounding galaxies.

Astronomers have long struggled with a troubling puzzle: a significant portion of normal matter in the universe appeared to ...

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Peruse Dr. Victoria Frankenstein's collection of monster oddities in the Manor Storehouse with our complete list of every ...

Since the James Webb Space Telescope (JWST) began science operations, astronomers have observed galaxies that existed more ...

The first was a flyby of the asteroid Dinkinesh on Nov. 1, 2023. This coming Sunday, Lucy will zip past her second target, ...

In fact, our tallies of stars and gas account for only half the expected normal matter—with the other half, equaling 7.5 percent of the ... by stacking images of some 7 million luminous red ...

NASA's PUNCH sun-studying mission has seen first light — and the team says all four instruments are indeed working as ...