Does a “Mirror World of Particles” Explain the Crisis in Cosmology?
A mirror universe model might explain why measurements of Hubble constant disagree.
Hubble Sees a Surviving Companion Star After its Partner Went Supernova
When stars die they’re often not alone, and for the first time astronomers have found a companion to a supernova,…
What is the Best Radiation Shielding for the Surface of Mars?
A new study takes a look at potential methods for radiation shielding that could inform the creation of Martian habitats
The Early Solar System was Total Mayhem
There's no question that young solar systems are chaotic places. Cascading collisions defined our young Solar System as rocks, boulders,…
See All Naked Eye Planets This Month… in Order
June 2022 offers early risers the chance to trace out the naked eye planets, from Mercury to Saturn.
Astronomers Find 116,000 New Variable Stars
What do two guys from Ohio, the GAIA mission, a worldwide network of ground-based telescopes, machine learning, and citizen scientists…
Objects That Share the Same Orbit are Common in the Solar System. But we’ve Never Seen co-Orbital Exoplanets. Why?
“Where are all the Trojans” is a question valid in both the study of ancient history and the study of…
A Pulsar has Been Found Turning so Slowly Astronomers Didn't Even Think it was Possible: Once Every 76 Seconds
Using the MeerKAT array, an international team of astronomers has detected a new class of radio-emitting neutron star!
The Stars in Other Galaxies are Generally Heavier Than the Milky Way’s Stars
How many of what kinds of stars live in other galaxies? It seems like a simple question, but it’s notoriously…
Even if you can’t see Auroras, You Can Sometimes Hear Them. Here’s What They Sound Like
Auroras are some of Earth’s most spectacular natural phenomena. Travelers come from far and wide to see the incredible Northern…