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Interstellar Comet 2I/Borisov Swings Past Sun

December 13, 2019

When astronomers see something in the universe that at first glance seems like one-of-a-kind, it’s bound to stir…
NASA’s TESS Presents Panorama of Southern Sky

November 6, 2019

The glow of the Milky Way — our galaxy seen edgewise — arcs across a sea of stars…
Beyond Jupiter, Researchers Discovered a “Cradle of Comets”

October 24, 2019

Researchers have discovered a region just beyond Jupiter that acts as a “comet gateway,” funneling icy bodies from…
Hubble Observes 1st Confirmed Interstellar Comet

October 17, 2019

NASA’s Hubble Space Telescope has given astronomers their best look yet at an interstellar visitor — comet 2I/Borisov…
Astronomers have Likely Spotted an Interstellar Comet Heading towards our Solar System – The First Ever Detected

September 17, 2019

In 2017, the interstellar object known as ʻOumuamua – the first ever to pass through the Solar System…
Gemini Observatory two-color composite image of C/2019 Q4 (Borisov) which is the first interstellar comet ever identified. This image was obtained using the Gemini North Multi-Object Spectrograph (GMOS) from Hawaii’s Maunakea. The image was obtained with four 60-second exposures in bands (filters) r and g. Blue and red dashes are images of background stars which appear to streak due to the motion of the comet. Composite image by Travis Rector. Image Credit: Gemini Observatory/NSF/AURA
Gemini Observatory Captures Multicolor Image of First-ever Interstellar Comet

September 17, 2019

The first-ever comet from beyond our Solar System has been successfully imaged by the Gemini Observatory in multiple…
Comet C/2019 Q4 as imaged by the Canada-France-Hawaii Telescope on Hawaii's Big Island on Sept. 10, 2019. Credits: Canada-France-Hawaii Telescope
Newly Discovered Comet Is Likely Interstellar Visitor

September 13, 2019

A newly discovered comet has excited the astronomical community this week because it appears to have originated from…
NASA’s TESS Mission Completes First Year of Survey, Turns to Northern Sky

July 26, 2019

NASA’s Transiting Exoplanet Survey Satellite (TESS) has discovered 21 planets outside our solar system and captured data on…
This image of the giant planet Jupiter, by NASA's Hubble Space Telescope, reveals the impact sites of fragments "D" and "G" from Comet Shoemaker-Levy 9. The large feature was created by the impact of fragment "G" on July 18, 1994 at 3:28 a.m. EDT. It entered Jupiter's atmosphere from the south at a 45-degree angle, and the resulting ejecta appears to have been thrown back along that direction. The smaller feature to the left of the fragment "G" impact site was created on July 17, 1994, at 7:45 a.m. EDT by the impact of fragment "D". Credits: H. Hammel, MIT and NASA
How Historic Jupiter Comet Impact Led to Planetary Defense

July 2, 2019

Twenty-five years ago, humanity first witnessed a collision between a comet and a planet. From July 16 to…
Did comet impacts jump-start life on Earth?

June 28, 2019

Comets screaming through the atmosphere of early Earth at tens of thousands of miles per hour likely contained…
Comet Provides New Clues to Origins of Earth’s Oceans

May 25, 2019

The mystery of why Earth has so much water, allowing our “blue marble” to support an astounding array…
99942 Apophis. Image credit: NASA
Scientists Planning Now for Asteroid Flyby a Decade Away

April 30, 2019

On April 13, 2029, a speck of light will streak across the sky getting brighter and faster. At…
Cometary surprise found inside meteorite

April 16, 2019

An ancient sliver of the building blocks from which comets formed was discovered encased inside a meteorite like…
NEOWISE Celebrates Five Years of Asteroid Data

April 16, 2019

NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission released its fifth year of survey data on April…
Hubble Watches Spun-Up Asteroid Coming Apart

March 29, 2019

A small asteroid has been caught in the process of spinning so fast it’s throwing off material, according…
A new theory for ‘Oumuamua: It’s a comet that rocks

March 15, 2019

Astronomers at Yale and Caltech say that ‘Oumuamua, the much-discussed interstellar space rock, is best viewed as a…
Holiday Asteroid Imaged with NASA Radar

December 22, 2018

The December 2018 close approach by the large, near-Earth asteroid 2003 SD220 has provided astronomers an outstanding opportunity…
NASA Telescopes Take a Close Look at the Brightest Comet of 2018

December 21, 2018

As the brilliant comet 46P/Wirtanen streaked across the sky, NASA telescopes caught it on camera from multiple angles.…
Watch comet 46P/Wirtanen as it nears Earth

December 17, 2018

When you do, you’ll be taking in the sight of a comet discovered by Kenosha native Carl Wirtanen,…
See a Passing Comet This Sunday

December 15, 2018

On Sunday, Dec. 16, the comet known as 46P/Wirtanen will make one of the 10 closest comet flybys…
Where do comets originate?

December 4, 2018

A new technique developed by team of Penn astronomers may allow scientists to measure radiation from celestial bodies that…
NASA Learns More About Interstellar Visitor ‘Oumuamua’

November 15, 2018

In November 2017, scientists pointed NASA’s Spitzer Space Telescope toward the object known as ‘Oumuamua – the first…
New Insights on Comet Tails Are Blowing in the Solar Wind

November 6, 2018

Engineers and scientists gathered around a screen in an operations room at the Naval Research Laboratory in Washington,…
Rare Blue Asteroid Reveals Itself During Fly-By

October 25, 2018

A team led by UA doctoral student Teddy Kareta obtained a rare glimpse of the bizarre, blue asteroid…
2018 Prospects for Obscure Comet 38P Stephan-Oterma

October 5, 2018

Ready for one more? While all eyes are still following Comet 21/P Giacobini-Zinner as it glides through northern…
NASA’s Planet-Hunting TESS Catches a Comet Before Starting Science

August 7, 2018

Before NASA’s Transiting Exoplanet Survey Satellite (TESS) started science operations on July 25, 2018, the planet hunter sent…
Catch Comet C/2017 S3 PanSTARRS in Outburst

July 30, 2018

Comets are one of those great question marks in observational astronomy. Though we can plot their orbits thanks…
Pluto is What You Get When a Billion Comets Smash Together

May 29, 2018

Pluto has been the focus of a lot of attention for more than a decade now. This began…
Asteroids Smack Jupiter More Often Than Astronomers Thought

April 26, 2018

Are you keeping a eye on Jupiter? The King of the Planets, Jove presents a swirling upper atmosphere…
New Study Shows What Interstellar Visitor ‘Oumuamua Can Teach Us

March 28, 2018

The first interstellar object ever seen in our solar system, named ‘Oumuamua, is giving scientists a fresh perspective…
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