Astronomers discovered a bright green comet streaking through the northern hemisphere’s skies. The comet is currently surrounded by a dust cloud twice as big as Jupiter, making it easily visible to observers on Earth.
Space July 9, 2018
It appears that researchers have finally solved the Oumuamua mystery. The interstellar visitor is now known to be a comet, not an asteroid, as it accelerates in its exit from the Solar System.
Space June 28, 2018
Scientists estimated that there could be thousands of near-Earth objects that are left unconfirmed. The team called for concerned agencies to devise a method that could ensure timely detection of NEOs that could potentially hit Earth.
Space June 23, 2018
Scientists were able to analyze ancient interstellar dust that could have existed before the formation of the solar system. The team collected them from Earth’s upper atmosphere, probably brought along each time comets pass near the sun.
Space June 12, 2018
A Twitter user created a gif using raw data released by the European Space Agency showing footage of the surface of Comet 67P. This is the first footage of the surface of a comet.
Space April 25, 2018
An international team of scientists concluded that a massive comet crashed into the Earth 13,000 years ago. The event supposedly created firestorms around the world, with the dust clouds blocking the sun and eventually leading into a mini ice age.
Ancient February 5, 2018
The skull-shaped asteroid that flew by Earth in Halloween 2015 is returning. Officially called 2015 TB145, the Halloween asteroid will come near Earth again in November 2018.
Space December 22, 2017
Researchers have spotted the first interstellar object that could be detected from Earth. The astronomers are trying to determine whether the object, referred to as A/2017 U1, is an asteroid or a comet.
Space October 29, 2017
The binary asteroid in the asteroid belt was initially thought of as a single object. It was eventually found to be two asteroids with comet-like features orbiting each other.
Space September 22, 2017
Ancient symbols carved at the Gobekli Tepe temple in Turkey suggest that comet fragments hit Earth about 13,000 years ago. What does this tell about the mini ice age known as the Younger Dryas?
Ancient April 24, 2017
Comet 41P has a complicated history. Until its identity was clearly established, the April Fools’ comet was initially mislabeled, then lost and eventually rediscovered in 1951.
Space April 3, 2017
This is not an April Fools’ Day joke. Slooh recorded the closest approach of comet 41P/Tuttle-Giacobini-Kresák as it passed the Earth on April 1 but it’s still around.
Space April 1, 2017
Scientists observe a massive comet falling into a white dwarf, leaving debris around the compact star’s surface. The event marks quite a few firsts in space observation.
Space February 12, 2017
C/2016 U1 NEOWISE may be seen using a pair of binoculars when it gets close enough to planet Earth. The comet follows an orbit that is possibly millions of years long.
Space January 3, 2017
Is it an asteroid or a comet? 2016 WF9, a near-Earth object set to approach our planet's orbit on Feb. 25, may have cometary origins but lack crucial characteristics of other comets.
Space January 2, 2017
The NEOWISE mission discovered two near-Earth objects approaching our planet. One is in a blurry line between a comet and asteroid, and the other is a comet that can be seen using binoculars.
Space December 31, 2016
Comets are historically seen as omens of bad luck. Comet 45P will appear on New Year's Eve, but people can expect to see more comets through most of 2017.
Space December 30, 2016
Comet 45P will have its own celestial show to welcome the new year on Saturday. Here's how to see the comet in the night sky and distinguish it from planets and stars.
Space December 30, 2016
What are the measures proposed by scientists to deflect potentially hazardous asteroids and comets? One scientist warned humanity is currently ill equipped at dealing with space objects that can cause mass extinction.
Earth/Environment December 15, 2016
A massive comet may have slammed into Earth about 56 million years ago and triggered an instantaneous global warming, a new study suggests. Evidence from rock sediments indicate the possibility of such cosmic impact.
Earth/Environment October 14, 2016
Rosetta is set to end its mission by colliding with Comet 67P later this month but it will continue to gather scientific data in its final moments. Here are some of the data that the space probe will collect in its final suicide mission.
Space September 19, 2016
Astronomers have captured the best possible view of a comet disintegrating. The comet, 332P, was making a trip around the sun millions of miles away from Earth during the disintegration.
Space September 16, 2016
Images from the ESA's Rosetta space probe revealed the location of the long-lost Philae lander. The photos also revealed why Rosetta had difficulty communicating with the comet lander.
Space September 6, 2016
Astronomers at NASA's Solar and Heliospheric Observatory observed a Kreutz sungrazer comet as it plunged to its death. The object zoomed toward the sun at incredible speed.
Space August 7, 2016
Eau de comet, ladies? British scientists partnered with a perfume company to create a scent that mimic's the smell of a comet's surface. Despite sounding glamorous, it might deliver a knockout punch to your date in more ways than one.
Space July 1, 2016
An icy belt of comets orbiting a nearby young, sun-like star HD 181327 could hold clues on the evolution of the solar system. What did astronomers find using the ALMA telescopes in Chile?
Space May 19, 2016
NASA's Hubble Space Telescope captured close-up images of comet 252P/LINEAR as it approached our planet from millions of miles away. This encounter is one of the closest approaches of any comet in recorded history.
Space May 14, 2016
Astronomer Antonio Paris is closing in on the 40-year-old mystery of an unknown signal from deep space, which is believed to be an alien transmission. He turns to science crowdfunding to build the radio telescope that will prove the origins of the so-called Wow! signal.
Space April 16, 2016
French researchers showed for the first time that artificial comet ice contains ribose and other sugar molecules believed to be building blocks for RNA and DNA. The findings were deemed important for many theories on the origin of life on Earth.
Space April 8, 2016
Mars was bombarded by massive comets and asteroids during the Late Heavy Bombardment 3.9 billion years ago. The impact, according to researchers, may have made the Red Planet conducive to life for a time in its history.
Space April 6, 2016
The massive planet Jupiter was hit by a speeding piece of space rock on March 17. The event was captured by two amateur astronomers conducting separate observations of the planet.
Space March 30, 2016
Thanks to radar and infrared technology, NASA was able to image and track the historic flyby of the comet PanSTARRS last March 22. The space agency was able to obtain clues on cometary history and evolution.
Space March 28, 2016
The green-colored Comet LINEAR is set to make its transit across the sky over the Northern Hemisphere in the final few days of March. Skywatchers can catch a glimpse of the comet using binoculars even though the Moon could flood the sky with its own light on these days.
Space March 27, 2016
The European Space Agency's Rosetta orbiter detected water ice on the surface of Comet 67P. What does this mean in terms of the comet's evolution?
Space January 18, 2016
In case any cataclysmic asteroids are lurking in the outer space surrounding Earth, NASA is prepared to defend the planet. The space agency on Thursday formally created its new asteroid detection program called the Planetary Defense Coordination Office (PDCO).
Space January 10, 2016
The impact from a centaur strike may be a bigger threat to Earth than previously thought, warned researchers. These giant comets cross the paths of massive outer planets and can hurtle toward Earth.
Space December 23, 2015
Scientists found Halley's Comet ejected traces of molecular oxygen during the ESA's Giotto probe in 1986, suggesting that O2 is common in other comets in the solar system.
Space December 11, 2015
Scientists found that the alien megastructure recently discovered was nothing but a swarm of comets. In a new study, researchers found explanations as to why star KIC 8462852 exudes unusual brightness and dimming patterns.
Space November 26, 2015
Comet Lovejoy was found spewing ethanol and sugar, providing evidence that comets carry complex organic molecules. Further investigation could reveal if these organic materials came from ancient clouds of gas that formed the solar system.
Space October 26, 2015
While mostly composed of water, rock and dust, comets also contain organic compounds in their composition. What makes the Lovejoy comet unique is that it is the first comet discovered to contain alcohol and sugar as well.
Space October 24, 2015
The asteroid impact that killed off the dinosaurs was not a one-off event, researchers suggest. Similar extinctions triggered by cosmic bombardments may have happened a number of times in the past, they say.
October 22, 2015
As the Comet 67P approaches the sun, the public is getting more and more excited. Here's some information on how and where to watch the highly anticipated cosmic event.
Space August 11, 2015
This Aug. 13, 67P/Churyumov-Gerasimenko is due for a perihelion, allowing the comet to achieve its closest approach to the sun and complete an important milestone in its current journey.
Space August 3, 2015
NASA partnered with the National Nuclear Security Administration to investigate on the possibility of using nuclear power to combat possible asteroid and comet damage on planet Earth.
Space June 24, 2015
Scientists have made new discoveries about the 67P/Churyumov-Gerasimenko comet’s surface and atmosphere, using the Alice spectrograph aboard the Rosetta spacecraft.
Space June 3, 2015
Feature | Science