Astronomy
What It Takes to Complete the Ultimate Skywatching Endurance Challenge
The "Messier marathon" prompts space hobbyists to spot 110 celestial objects in one night, and the best time to try it is in March
Jupiter's Moon Europa May Have Less Oxygen Than Previously Thought
The new findings could have implications for whether Europa's vast ocean contains the conditions necessary to support life
How Ancient Texts Can Shed Light on Auroras
Documenting episodes of the phenomenon thousands of years ago may help us predict damaging solar storms in the future
The Decimal Point Is 150 Years Older Than Previously Thought, Medieval Manuscript Reveals
A Venetian merchant used the mathematical symbol while calculating the positions of planets between 1441 and 1450
Asteroid Hit by NASA Spacecraft Was Reshaped by the Collision, Study Finds
Instead of forming a crater, the agency's intentional DART crash redistributed massive amounts of the asteroid and shot large quantities of rock into space
You Can Watch the Solar Eclipse From These Flights Through the Path of Totality
Delta Air Lines and Southwest Airlines are operating flights on April 8 that could give passengers unobstructed views of the rare celestial spectacle
Astronomers Discover the Brightest Known Object in the Universe, Shining 500 Trillion Times as Bright as the Sun
The quasar—a glowing, active core of a galaxy—has a black hole at its center that consumes more than a sun’s-worth of mass each day
Scientists Detect Water on the Surface of Asteroids for the First Time Ever
Using data from a retired NASA mission, researchers identified unique signs of water molecules on two space rocks, unlocking new insight into how water may have arrived on Earth
What Does a Solar Eclipse on Mars Look Like? New, Breathtaking Images, Caught by NASA's Perseverance Rover, Give Us an Idea
The robot recently observed each of the Red Planet’s moons passing across the sun in the Martian sky
The Six Most Amazing Discoveries We’ve Made by Exploring Venus
Our sister planet’s cloudy exterior gave it an aura of mystery—until humanity developed the technology to probe past the veil
A 'Very Rare' Kind of Space Rock Fell in Germany—and Scientists Recovered the Pieces
Analyses revealed the asteroid was an “aubrite,” a classification that applies to only 80 of 70,000 previously found meteorite fragments
How to Watch the Spectacular Total Solar Eclipse in April 2024
The moon will appear to completely block the sun's light across parts of Mexico, the United States and Canada on April 8—here's how to make the most of this rare celestial phenomenon
See Detailed New Images of Io From Another NASA Flyby of the Solar System's Most Volcanic World
The stunning views show lava flows and volcanic plumes, as scientists seek to learn what causes such volatile conditions on the moon of Jupiter
See Dazzling New Images of 19 Spiral Galaxies Captured by the James Webb Space Telescope
These detailed infrared views, which contain millions of stars, will help astronomers better understand star formation and the evolution of spiral galaxies
This 'Game-Changer' Detector Will Hunt for Giant Ripples in Spacetime
Set to launch in 2035, the European Space Agency's LISA mission will listen for gravitational waves created by colliding black holes and neutron stars—and some might date nearly to the Big Bang
This Planned NASA Telescope May Help Us Identify Worlds Like Our Own
The innovative Habitable Worlds Observatory will offer ways to detect signs of life on other planets
NASA Finally Opens Canister Holding Asteroid Sample—See What They Found
It took several months for the researchers to remove two stuck fasteners, which required them to design new tools
Giant, 'Odd' Circles of Radio Waves in Space May Finally Have an Explanation
The mystifying orbs could be caused by galactic winds, propelled by a period of rapid star formation and death
These 15 Photos Capture the Beauty of the Night Sky
Stars shine in these heavenly images from the Smithsonian Magazine Photo Contest
The Most Anticipated Museum Openings of 2024
Scheduled to launch this year are new institutions dedicated to astronomy, Nintendo and women artists
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