SUNSET: 
Solar Eclipse Made Bow Waves in Earth's Atmosphere
New research shows that the supersonic motion of the Moon's shadow across the continental U.S. in August 2017 created bow waves in Earth's atmosphere.
Akatsuki's Amazing Views of Venus
Almost everyone considered Japan's Venus-bound orbiter a lost cause, but the spacecraft survived, reached its objective, and is wowing scientists with results.
60-Second Astro News: Exoplanets, Comet 41P & Milky Way Clouds
Citizen scientists have discovered a system of five sub-Neptune planets, NASA scientists follow the spin of Comet 41P, and speedy clouds of gas shed light on the Millky Way's history.
Water Ice Found Exposed in Martian Cliffs
Thick sheets of water ice, some barely buried beneath the surface and likely more than 100 meters thick, have been spotted on several Martian cliff faces.
Michigan Meteorite Tally Multiplies
They look like leftover gravel from a freshly laid asphalt road, but the black stones that spattered across the snow in the wake of the January 16th Michigan fireball were anything but terrestrial. They belonged to a tiny asteroid on a recent foray to the outer asteroid belt but now…
Comet Discoverer Thomas Bopp (1949–2018)
An unassuming amateur astronomer forever linked to one of the greatest comets in modern history has passed away.
Sun Might Have Formed in Giant Star's Bubble
A new theory of the solar system’s formation suggests that it formed within the shell of a wind-blown bubble surrounding a dead star.
`Oumuamua: Red, Tumbling, and Silent
Astronomers' recent observations of our first-known interstellar visitor reveal that it is very strange indeed.
AGU 2017: News from the Solar System
Here's a quick look at results announced at the 2017 American Geophysical Union meeting in New Orleans: exploding meteoroids, Saturn's ring-atmosphere connection, and more bright spots on Ceres.
Does New Horizons’ Target Have a Moon? (Update: Nope)
New analysis from the New Horizons team suggest that the spacecraft's next target in the Kuiper Belt might have a third companion.
Juno Probes Depths of the Great Red Spot
NASA’s Juno spacecraft peeked under the clouds of the most iconic weather feature in the solar system, Jupiter’s Great Red Spot, revealing a complex structure deep below the surface.
Why is Earth Magnetized and Venus Not?
A new analysis reveals that the gigantic impact that led to the Moon's formation might have also switched on Earth's magnetic field.
NASA Joins Japanese Mission to Martian Moons
NASA is developing a key instrument for a mission to the Martian moons, Phobos and Deimos.
Meet 'Oumuamua, the Interstellar Cigar
Rapid-response observations by major observatories shows that the first-known interstellar visitor is 10 times longer than it is wide.
Update on `Oumuamua, Our First Interstellar Object
The arrival of an object from beyond the solar system caught astronomers by surprise — but that doesn't mean that they were unprepared to study it.
A Twisted Tail of Martian Magnetism
Observations from NASA's MAVEN spacecraft reveal that the solar wind causes unexpected interactions with the Red Planet's weak magnetism.
How Bright is the Moon . . . Exactly?
An upcoming study will take the old calibration standard of the Moon's brightness to a new level of precision.
Astronomers Spot First-Known Interstellar "Comet"
Telescopes only picked it up a week ago, but it's likely been traveling through interstellar space for millions of years.
New High-End Search for Lunar Impacts
A professional observatory in Greece has begun recording flashes created when bits of interplanetary debris strike the Moon.
Surprising Science from Cassini's Grand Finale
You'd think scientists would have Saturn all figured out after watching it up close for 13 years. They don't.
