Astronomy
Night Sky Wonders to Ring in the New Year
The star Sirius is high in the sky, and comet Catalina is at its brightest
What Exactly Was the Christmas Star?
The Star of Bethlehem may not have actually been a star
Scientists Are Searching for Space Chemicals That Could Never Exist on Earth
Bizarre chemicals in deep space could help explain the origins of life
Two Sparkling Meteor Showers Will Bookend the New Year
Sky-watchers should be on the lookout in coming weeks for the Ursid and Quadrantid showers
Poltergeist and Quijote Are Among the New Approved Names for Alien Planets
People in 45 countries submitted ideas for naming exoplanets and their host stars after legends and literature
Catch a Glimpse of the Comet Catalina and the Geminid Meteor Shower
The meteor shower peaks next week as comet Catalina gets closer throughout the month
A Space-Based Physics Lab Could Help Scientists Study How Gravity Warps Spacetime
The LISA Pathfinder Probe could help reveal the ripples caused by black holes and supernovae
Court Revokes the Construction Permit for Contentious Hawaiian Telescope
Protestors physically blocked access to the Mauna Kea construction site for more than a year and now the project faces another roadblock
Look to the Skies This Month for the Pleiades Star Cluster
The Seven Sisters will shine bright from dusk till dawn for the rest of November
A New Earth-Sized Planet Is Getting Astronomers Riled Up
It could be a rare opportunity for scientists to study an exoplanet’s atmosphere
Orion's Return, Falling Fireballs and Other Treats in November's Night Skies
A constellation rises as the Leonid and Taurid Meteor Showers return
92 Percent of Possible Earth Twins Have Yet to Be Born
Our young universe promises trillions of more planets to come
The Orionid Meteor Shower and Rare Planetary “Dance” Make This a Lucky Week for Stargazers
Here’s what the night sky has to offer this week
The Photos of the Rare Supermoon/Lunar Eclipse Convergence Do Not Disappoint
Take in the majesty of the unusual astrophysical event with these photos captured around the world
The Theory of Relativity, Then and Now
Albert Einstein's breakthrough from a century ago was out of this world. Now it seems surprisingly down-to-earth
Black Holes Might Catapult Rogue Supernovas Into Space
Like being fired from a slingshot at 4.5 million miles an hour
When Will the Next Solar Superflare Hit Earth?
The year 2209 just got a lot scarier
Watch the Perseids Peak This Week
Summer's stunning meteor shower is sure to please stargazers
These Super-Dense Galaxies Are Bursting With Stars
Life in these systems would have trouble starting, but the night skies would be spectacular to behold
Philae Proves There's More to Comets Than Dust and Ice
The lander found organic compounds on comet 67P
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