Earth’s magnetic field has a 200-million-year cycle, shows new study
The findings of a new study by the University of Liverpool provides further evidence of an approximately 200-million-year long cycle in the strength of...
The Milky Way galaxy broke one of its arms
The Milky Way galaxy is our home, and yet in some ways, it is the least understood galaxy.
One of the biggest challenges astronomers have...
Scientists find evidence of solar-driven change on the moon
Tiny iron nanoparticles unlike any found naturally on Earth are nearly everywhere on the moon—and scientists are trying to understand why.
A new study led...
Ten percent black holes in our universe might be in wanderers, shows study
Every massive galaxy is believed to host a supermassive black hole (SMBH) at its center.
Its mass is correlated with the mass of the inner...
Doomed celestial visitor may have been a piece of a prehistoric comet, shows study
It's suspected that about 5,000 years ago a comet swept within 23 million miles of the Sun, closer than the innermost planet Mercury.
The comet...
This bizarre, ghostly galaxy has no dark matter
Galaxies and dark matter go together like peanut butter and jelly.
Rarely is one without the other, but a recently discovered galaxy called NGC 1052-DF2...
Nearby star-forming region gives clues to the formation of our solar system
A region of active star formation in the constellation Ophiuchus is giving astronomers new insights into the conditions in which our own solar system...
Astronomers find a break in one of the Milky Way’s spiral arms
The newly discovered feature offers insight into the large-scale structure of our galaxy, which is difficult to study from Earth’s position inside it.
Scientists have...
Gas giant Saturn makes waves in its own rings
In the same way that earthquakes cause our planet to rumble, oscillations in the interior of Saturn make the gas giant jiggle around ever...
Fizzing sodium could explain asteroid Phaethon’s cometlike activity
Models and lab tests suggest the asteroid could be venting sodium vapor as it orbits close to the Sun, explaining its increase in brightness.
As...