SUNSET: 
An Atmosphere of Heavy Metals
Researchers have found strong evidence of titanium oxide in the atmosphere of a hot giant planet, adding new insights to the complex motions of these planets’ extreme atmospheres.
Shockwaves Light up Stellar Explosions
Thermonuclear power sets off a type of stellar explosion known as a classical nova. Now, new research explains the mechanisms that cause these blasts to light up.
First Pluto Features Officially Named
Two years after New Horizons captured the first high-resolution image of Pluto, the IAU releases official names for some of its features.
Eclipse Aftermath Brings Lawsuit Against Amazon
Counterfeit eclipse glasses created great confusion in the days prior to the solar eclipse. Luckily few cases of eye damage have been reported.
Historical Observations Reveal Ancient Nova
Astronomers and historians pinpoint the source of a 15th-century classical nova. It’s currently regathering strength.
Antares Image Reveals Chaotic Surface
Researchers have constructed a detailed view of the surface of red supergiant star Antares, revealing a chaotic atmosphere powered by mechanisms that are still poorly understood.
Best 2017 Eclipse Pictures from Our Readers
We've curated a selection of some of the best pictures our readers submitted to our online gallery of the August 21 solar eclipse.
Total Eclipse vs Solar Power
In addition to clogged roads and crowded hotels, the 2017 solar eclipse had another big effect on U.S. infrastructure: reduced solar power production.
The Eclipse as Seen by Citizen Scientists
Some academic and citizen-science groups came up with neat initiatives for eclipse day. Let’s find out how they did.
The White Dwarf That Survived
A peculiar white dwarf could be what’s left after a failed supernova explosion.
Curiosity Rover Watches Clouds on Mars
Barely visible water-ice clouds coast across Mars’s skies in new videos from the Curiosity rover.
