Solar System
Astronomers Spot a Comet That Likely Came From a Different Solar System
After 'Oumuamua, the newly detected rock is just the second known object to visit from interstellar space
India Locates Lost Lunar Lander but Struggles to Reestablish Contact
The Vikram spacecraft went offline minutes before it was scheduled to touch down near the south pole of the moon
Dragonfly Spacecraft to Scour the Sands of Titan for the Chemistry of Life
The NASA rotorcraft, resembling a large quadcopter drone, will fly through the orange clouds of the ocean moon in the outer solar system
First Moon-Forming Disk Detected Swirling Around an Exoplanet
Telescope observations suggest that a cloud of gas and dust around a planet 370 light-years away may be coalescing into planet-sized moons
Photos Capture the Great South American Eclipse
On July 2, residents of Chile and Argentina witnessed the first total solar eclipse since August 2017
LightSail 2 Launches to Space to Soar on the Power of Sunshine
The Planetary Society's second solar sail will attempt to use sunlight to fly through space
Scientists Find a Tiny Speck of Comet Inside a Meteorite
The little fragment found in Antarctica was protected from the elements and preserves the chemical signature of the early solar system
The Largest Unnamed Object in the Solar System Needs a Title—and You Can Help
2007 OR10 needs a snazzier moniker; the public can now choose between ‘Gonggong,’ ‘Holle’ and ‘Vili’
Exoplanet Core Orbiting a Dying Star May Help Astronomers Understand What Lies in Store for Our Solar System
It's likely the planetesimal orbiting a white dwarf 410 light years away was the core of a minor planet caught in its immense gravity
Raging Rivers May Have Washed Over Mars for Billions of Years
A study of 200 river systems shows the waterways persisted even while the atmosphere was disappearing and the Red Planet was drying up
There's a Dark and Stormy Vortex Brewing on Neptune
It is the sixth massive dark and stormy vortex found on the planet since 1989 and the only one astronomers have watched develop
Earth's Rock Record Could Reveal the Motions of Other Planets
Studying the layers of Earth's crust, scientists have created a "Geological Orrery" to measure planetary motions dating back hundreds of millions of years
Mars May Have Had a Planet-Wide System of Underground Lakes
A study of 24 craters shows they experienced the simultaneous rise and fall of groundwater, suggesting they were interconnected at one time
Ring in the New Year With NASA’s Most Distant Planetary Encounter in History
The New Horizons spacecraft is on final approach to the distant Kuiper Belt Object, Ultima Thule, and you can follow along live
Meet Farout, the Solar System's Most Distant Minor Planet
Observations suggest the object is 300 miles in diameter, pinkish-red and 3.5 times as far away from the sun as Pluto
The Ten Best Science Books of 2018
These titles explore the wide-ranging implications of new discoveries and experiments, while grounding them in historical context
Juno's Latest Photo of Jupiter Is Breathtaking
The image, processed from JunoCam's raw data, shows storms and winds in the planet's Northern Temperate Belt
Where Did Earth’s Water Originate? Solar Nebula, Study Suggests
Researchers say the hydrogen contained in these clouds of gas and dust contributed to formation of one out of every 100 water molecules found on Earth
If a Moon Has a Moon, Is Its Moon Called a Moonmoon?
A new study suggests it's possible some moons could have moons and the internet wants to give them a name—but scientists have yet to actually find one
Saturn's Rings Rain Organic Compounds Into Its Atmosphere
The Cassini probe's final flybys show that 22,000 pounds of material per second drops from the rings into the planet's ionosphere
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