All About Everything

Proxima Centauri, the sun's nearest neighbor, may host a 2nd alien planet. Meet Proxima c.

Proxima b may not be an only child after all. In August 2016, astronomers announced that a roughly Earth-size exoplanet circles the closest star to the sun, the red dwarf Proxima Centauri, which lies a mere 4.2 light-years from us. (For perspective, the Milky ...

2 potentially habitable 'Super-Earths' and a record-setting 'Cold Neptune' found in exoplanet haul

Astronomers have found two more potentially life-supporting alien planets in our neck of the cosmic woods, as well as a weird and record-setting "cold Neptune." The two possibly habitable worlds orbit the red dwarf stars GJ229A and GJ180, which lie about ...

Astronauts upgrade space station batteries in second all-woman spacewalk

HOUSTON — The second all-female spacewalk in history continued the work of the first, as the same two NASA astronauts upgraded batteries outside the International Space Station. Jessica Meir and Christina Koch completed a 7-hour and 29-minute ...

What Is a Gamma-Ray Burst?

Gamma-ray bursts are the strongest and brightest explosions in the universe, thought to be generated during the formation of black holes. Though they last mere seconds, gamma-ray bursts produce as much energy as the sun will emit during its entire ...

Astronomers just tracked the interstellar journey of one of life's building blocks through space

Scientists have traced the journey of phosphorous, one of the essential building blocks for life as we know it on Earth, through the star-forming regions of space. Phosphorous, an element present in our DNA and RNA and in cell membranes, is a critical ...

Second all-female spacewalk briefly hampered by helmet issue

CNN

CNN

(CNN) The second spacewalk in history to be conducted entirely by female astronauts got underway at the International Space Station on Wednesday morning. NASA astronauts Jessica Meir and Christina Koch ventured out of the space station shortly before ...

This Strange Microbe May Mark One of Life's Great Leaps

A bizarre tentacled microbe discovered on the floor of the Pacific Ocean may help explain the origins of complex life on this planet and solve one of the deepest mysteries in biology, scientists reported on Wednesday. Two billion years ago, simple cells gave ...

The black hole at the center of the galaxy is forging a strange new kind of star

The black hole at the center of our galaxy is warping and combining stars into a strange new kind of object, astronomers say. Shares. This illustration shows the six strange objects (dubbed G1 through G6) that astronomers detected swirling around our ...

NASA astronauts are taking the second all-woman spacewalk today. Watch it live!

Two NASA astronauts are taking a spacewalk outside the International Space Station today (Jan. 15), and you can watch all the action live online. For the first spacewalk of the year, NASA astronauts Christina Koch and Jessica Meir will spend about 6.5 hours ...

Lesson of the Day: 'How's Your Internship Going? This Teen Found a Planet'

Featured Article: "How's Your Internship Going? This Teen Found a Planet". Wolf Cukier, a teenager from Scarsdale, N.Y., spent the summer before his senior year interning at NASA's Goddard Space Flight Center in Greenbelt, Md. In his time interning, ...