Human Mars mission could be safe if it doesn’t exceed four years, shows study
Sending human travelers to Mars would require scientists and engineers to overcome a range of technological and safety obstacles.
One of them is the grave...
Scientists discover new class of habitable exoplanets
A new class of exoplanet very different to our own, but which could support life, has been identified by astronomers, which could greatly accelerate...
Where the Milky Way’s cosmic rays come from
Astronomers have succeeded for the first time in quantifying the proton and electron components of cosmic rays in a supernova remnant.
At least 70% of...
Scientists discover the fastest-orbiting asteroid in our Solar System
The Sun has a new neighbor that was hiding in plain twilight.
An asteroid that orbits the Sun in just 113 days—the shortest known orbital...
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...