Solar System Exploration
It's suspected that about 5,000 years ago a comet swept within 23 million miles of the Sun, closer than the innermost planet Mercury.
Comet Atlas May Have Been a Blast From the Past
Models and lab tests suggest the asteroid could be venting sodium vapor as it orbits close to the Sun, explaining its increase in brightness.
Fizzing Sodium Could Explain Asteroid Phaethon's Cometlike Activity
Comet 46P/Wirtanen was releasing an unusual amount of alcohol as it made its historic flyby of Earth two and a half years ago.
Abnormally High Alcohol, Mystery Heat Source Detected on Comet Wirtanen
A one-time visitor to our inner solar system is helping explain more about our own origins.
Comet Catalina Suggests Comets Delivered Carbon to Rocky Planets
A wayward young comet-like object orbiting among the giant planets has found a temporary parking place along the way.
Comet Makes a Pit Stop Near Jupiter's Asteroids
JPL's lucky peanuts are an unofficial tradition at big mission events.
What Are NASA's Lucky Peanuts?
As Chile and Argentina witnessed the total solar eclipse on Dec. 14, 2020, a little tiny speck was flying past the Sun – a recently discovered comet.
Recently Discovered Comet Seen During 2020 Total Solar Eclipse
When scientists downlinked data from Parker Solar Probe's sixth orbit, there was a surprise waiting for them: a sungrazing comet.
Two Views of a Sungrazing Comet
The next full Moon will be on Thursday afternoon, Oct. 1, 2020. The Moon will appear full from Wednesday morning through Saturday morning.
October 2020: The Next Full Moon is the Harvest Moon
NASA instruments aboard ESA's Rosetta mission helped reveal that comet 67P/Churyumov-Gerasimenko has its own aurora.
Comet Discovered to Have Its Own Northern Lights
This is the first time Hubble has photographed a comet of this brightness at such resolution after this close of a pass by the Sun.
Hubble Snaps Close-Up of Celebrity Comet NEOWISE
The Earth has one less asteroid to worry about thanks to the research of an international team of scientists at the Arecibo Observatory in Puerto Rico.
Arecibo Observatory Returns from Tropical Storm Isaias Lockdown to Track Asteroid for NASA
The next full Moon will be midday on Monday, August 3, 2020.
August 2020: The Next Full Moon is the Sturgeon Moon
In the fall of 2022, NASA’s DART spacecraft will reach its destination: asteroid Didymos and its small moonlet Dimorphos.
Predicting the Unpredictable: DART's Dive into an Asteroid
ISS is seen in this 10 second exposure above comet NEOWISE, Saturday, July 18, 2020, from Keys Gap, West Virginia.
International Space Station and Comet NEOWISE
On July 9, 2020, astronaut Robert Behnken captured an image of comet NEOWISE from the International Space Station.
Comet NEOWISE from the International Space Station
For those hoping to catch a glimpse of comet NEOWISE, there are several observing opportunities in the coming days.
How to See Comet NEOWISE
NASA’s Parker Solar Probe was at the right place at the right time to capture a unique view of comet NEOWISE.
NASA's Parker Solar Probe Spies Comet NEOWISE
A comet visiting from the most distant parts of our solar system is putting on a spectacular nighttime display.
Comet NEOWISE Slides by Sun, Provides Treat for Observers
The next full Moon will be early Sunday morning, July 5, 2020. There also will be a partial penumbral eclipse of the Moon.
July 2020: The Next Full Moon is the Buck Moon
A citizen scientist has spotted a never-before-seen comet in data from SOHO — the 4,000th comet discovery in the spacecraft’s 25-year history.
4,000th Comet Discovered by SOHO Solar Observatory
NASA’s STEREO-A spacecraft captured these images of comet ATLAS swooping by the Sun.
STEREO Watches Comet ATLAS as Solar Orbiter Crosses Its Tail
Recently discovered object 2019 LD2, originally believed to be the first cometary “Jupiter Trojan” asteroid, turned out to be an interloper comet masquerading as a member of the Trojan population.
UPDATE: Astronomers recategorize asteroid-like comet detected by ATLAS telescope
Nearly 25 years since its launch, data from SOHO has led to the discovery of well over half of all known comets.
Why ESA and NASA's SOHO Spacecraft Spots So Many Comets
The comet was first spotted in April 2020 by an amateur astronomer using data from SOHO.
New Comet Discovered by ESA and NASA Solar Observatory