Astronomy
270 articles-
Here to Save the Day!
Asteroid defense gets serious. -
Could Modified Gravity Kill Planet Nine?
A controversial theory can explain phenomena attributed to the mystery planet. -
Inside an Exploded Star
Cassiopeia A gets a close-up. -
The Thorny Ethics of Making Alien Planets Habitable
Terraforming Mars could risk exterminating the very lifeforms we dream of discovering. -
My 3 Greatest Revelations
The author on writing her book, Our Moon, about the power of our satellite to guide evolution and human curiosity. -
The Violent Birth of the Moon
Did a colossal collision with a doomed planet give us our satellite? -
The Enlightening Beauty of an Einstein Ring
What a trippy gravitational phenomenon can tell us about the universe. -
What Can We Hear in Space?
The music of the cosmos is stranger than you think. -
A Wild Idea to Solve the Mysteries of Black Holes
Could quantum mechanics hold the key? -
How to Find and Keep a Space Rock
NASA cosmic dust curator Marc Fries is here to explain.
-
Earth May Not Be Toast
When our sun expands into a giant red star, it might not devour its third planet, after all.
-
The Cosmic Web and the Fate of the Universe
Projects to map the universe are getting weird. -
It Spins!
What the first evidence of a spinning supermassive black hole means. -
A Mission to the Asteroid Psyche Is Her Dream Journey
Exploring outer and inner space with Lindy Elkins-Tanton. -
A Crucial Ingredient for Life Is Bubbling Up on Europa
Jupiter’s ice-capped moon has a storehouse of carbon dioxide in its subsurface ocean. -
The Sneaky Force Behind Our Sun’s Violent Outbursts
A strange discovery from flying close to the sun.