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Tag: Comets

Dwarf Planet Pluto Could Be A Giant Comet

Building on data from New Horizons and Rosetta mission on comet 67P, scientists presented ‘the giant comet cosmochemical model of Pluto formation.’ The team floated the idea that Pluto could actually be a giant comet after all.

Space May 24, 2018

Comet Sheds Light Into The Origins Of The Solar System, Providing Clues About Its Earliest History

Samples taken from a comet may shed light on just how the solar system formed. The dust particles date from the time of the formation of the solar system and could give clues to the possible origin.

Space March 30, 2018

Visiting Star Threw Comets And Asteroids Off Their Orbits 70,000 Years Ago

In the prehistoric times, a red dwarf passed and knocked off some parts of the Oort Cloud and created new objects with an unusual orbit. Instead of moving in a circular motion, they follow a V-shaped path.

Space March 22, 2018

Trappist-1: Could Planets In Recently Discovered Solar System Be Seeding Each Other With Life?

Consequent to the announcement of NASA that seven exoplanets have been discovered, a new study has argued that life forms on one planet can seed life in other planets by riding on space debris to reach other planets.

Space April 30, 2017

NASA's Hubble Space Telescope Detects Exocomets Falling Toward Young Star

Gas detected by the Hubble Space Telescope hinted the presence of comets falling toward the young star HD 172555. What does the process known as gravitational steering hint about the waters on Earth?

Space January 11, 2017

NASA Says Earth Is Not Prepared For A Surprise Asteroid Impact

NASA believes the Earth is still vastly unprepared to deal with near-Earth objects potentially striking the planet. However, efforts such as coming up with better observation capabilities for asteroids and comets are being made to resolve this.

Space December 14, 2016

New Study Reveals Similarities, Relationships Between Chemicals Found On Comets

A new research has revealed that there are profound similarities and relationships between certain chemicals existing on 30 different comets despite variations in the comets' overall composition. The study is vital in knowing more about the birth of the solar system.

Space December 6, 2016

Spinning Comets Repeatedly Break Apart And Reform Later On

Periodic comets may split into two regularly and then reunite down the road. This is a part of comet evolution that may explain why many comets have multiple lobes and exhibit mysterious phenomena.

Space June 2, 2016

Ingredients Of Life Found In Rosetta's Comet

Comet 67/P is releasing some of the basic ingredients of life into space. What can this tell us about the early days of our own planet?

Space May 28, 2016

Pluto Is Looking More Like A Planet After All

The New Horizons spacecraft reveals how solar wind interacts with Pluto. Much like about that distant body, the answer is bizarre.

Space May 8, 2016

Tailless Comet Manx Holds Clue To Evolution Of Solar System

Tailless comet recently discovered by astronomers may hold clues to the evolution of the solar system. Comets are known to have valuable information about the origins of the solar system's objects and this new discovery is no exception.

Space May 1, 2016

Tailless Comet C/2014 S3 (PANSTARRS) Discovered Living In Oort Cloud Could Answer Mysteries About Earth

A strange comet without a tail has been spotted heading toward the sun in a long orbit. What can this odd body tell us about the formation of the solar system?

Space April 29, 2016

'Wow!' Signal From Space Explained: Is It From Aliens Or Something Else?

An astrophysicist in Florida says he has a good hunch about the origin of a mysterious radio blast from space first detected in 1977. Antonio Paris is setting out to prove that the 'Wow!' signal came from two comets surrounded by massive hydrogen gas clouds.

Space April 20, 2016

Clathrate Ices Found In Comet 67P Could Answer Secrets Of Formation Of Solar System

Study of the coma surrounding Comet 67P/Churyumov–Gerasimenko points to the presence of highly structured clathrate ices in the frozen body. What can this discovery teach us about the birth of the solar system?

Space April 10, 2016

Comet 67/P Seen In Stunning New Image From Rosetta

The Rosetta spacecraft has recorded a new photograph of Comet 67/P as the frozen body appeared to be passing in front of the sun. The result is spectacular.

Space April 2, 2016

Planet X May Be Responsible For Mass Extinctions On Earth

A retired astrophysicist said Planet X could have caused mass extinctions on Earth. The elusive planet has been triggering comet showers, roughly every 27 million years, that result in periodic mass extinctions.

Space March 31, 2016

Pair Of Comets To Make Close Brush Past Earth March 21 and 22

Two comets will brush past Earth on March 21 and 22. How close will these celestial visitors come to our home planet?

Space March 18, 2016

Rosetta's Comet Devoid Of Caves, New Observations Reveal

Comet 67/P does not have large caves, as many astronomers once believed. How did astronomers use the Rosetta spacecraft to reach this conclusion?

Space February 5, 2016

Frozen Water Has Been Found Beneath The Surface Of Comet 67P

While scientists already knew of the existence of frozen water under the surface of Comet 67P/Churyumov-Gerasimenko, a team of researchers at the National Institute for Astrophysics in Rome has confirmed the amount and location.

Space January 14, 2016

Life On Earth Wouldn’t Be The Same If It Wasn't For Our Friendly Neighborhood Giant Jupiter

Astronomers are showing just how big an influence Jupiter is on the formation and continued existence of the solar system, especially of Earth. Check out some of the research and simulations that have been done recently.

Space January 3, 2016

NASA’s Hedgehog Robot could Bounce Around Comets And Other Objects in the Solar System

The Hedgehog robot does not roll around on wheels but instead bounces around a comet or asteroid's surface. It was designed to overcome the challenges of traversing small bodies in the solar system.

Space September 5, 2015

Comets Have Sinkholes, Too, Rosetta Data Suggests

The Rosetta spacecraft has detected sinkholes on Comet 67/P. How are these strange formations created?

Space July 1, 2015

Astronomers Puzzle Out Possible Source of Mysterious Bright 'Swirls' On The Moon

Bright, twisty swirls across the lunar landscape may be signs of comet impacts in the moon's distant past, researchers say. Such features match what computer models say could happen when comets slam onto the lunar surface, they report.

Space June 2, 2015

Astronomers Find More Evidence Asteroids Deliver Water To Planets

Water-bearing asteroids and comets like those that brought water to the Earth are common in the galaxy, a study suggests. Many Earth-like exoplanets may have been seeded with water during cosmic impacts, researchers say.

Space May 7, 2015

Organic Molecules Found Circling Nearby Star — Possible Building Blocks Of Life?

Complex molecules, similar to what started life on Earth, were found circling a young, distant star.

Space April 8, 2015

Mercury Painted Black By 'Invisible Paint': Here's What Happened

Mercury is far darker than traditional planetary models would suggest. Now, a team of astronomers thinks they know why that may be.

Space March 30, 2015

Our Solar System Had A Close Shave With Scholz's Star 70000 Years Ago. A Very Close Shave

At a time when the Homo erectus had just gone extinct, a red dwarf called Scholz's Star passed by the outer reaches of the Solar System at a relatively close distance of 0.8 light years away from the Earth.

Space February 19, 2015

Scientists Confirm That Shooting Stars Come from Comets

New data gathered by the ESA's Rosetta spacecraft proves what scientists have long suspected: shooting stars are the result of active comets shedding dust as they get closer to the sun.

Space January 27, 2015

Earth Bids Farewell to Comet Lovejoy, See You in 8,000 Years: Here's a Time-Lapse Video to Remember Lovejoy

So long, comet Lovejoy! See you in 8,000 years. Here’s a time-lapse video to immortalize the moment the comet passed by Earth.

Space January 26, 2015

Comet Lovejoy Treat For Californians: Watch Now Or Miss It For 8000 Years

Comet Lovejoy is visible in skies for the rest of the month, shining as a greenish ball of light. Once it disappears, it won't be near the Earth for another 8,000 years.

Space January 25, 2015

First Batch of Research from Rosetta Comet is Now Public

Comet 67P/Churyumov-Gerasimenko has been seen like never before, using the Rosetta spacecraft. What did astronomers find on the icy body?

Space January 22, 2015

Don't Miss: Comet Lovejoy Now Visible Over US This Weekend

Comet Lovejoy will be visible to amateur astronomers all over the United States this weekend. Where in the sky can this green comet be found?

Space January 11, 2015

Comet Lovejoy is Here: Watch C/2014 Q2 Now or Miss It for 8000 Years

Comet Lovejoy is visible now in night skies. Here is how to find this visitor from the outer depths of our solar system.

Space January 9, 2015

Is This A UFO Crashing Over Southern California?

Probably not, but it still looks really cool.

Geek January 5, 2015

Quadrantid Meteor Shower Peaking Saturday Night: Here's What All Stargazers Should Know

The Quadrantid meteor shower is the first meteor shower of 2015 - but seeing it could be a challenge for amateur astronomers around the United States.

January 3, 2015

How to Find Comet Lovejoy, the New Year's Comet

Comet Lovejoy will be visible in skies during the beginning of 2015. Here are tips and updates on the celestial visit.

Space December 30, 2014

Comet Dust Found on Earth for First Time, Locked in Ice and Snow

Comet dust found in Antarctica could open up new worlds to researchers, but what can it tell us about life on Earth?

Space December 10, 2014

Rosetta's nose sniffs rotten eggs: Why does comet 67P/Churyumov-Gerasimenko smell so?

Comet 67P/Churyumov-Gerasimenko is emitting a powerful stench of gases as it speeds toward the Sun, but what can that tell us about the history of the Solar System?

Space October 25, 2014

Two families, hundreds of comets: ‘Exocomets’ found circling distant star

Groups of comets circling a distant start may yield clues to our own solar system's formation, astronomers say. Young star is host to the comets and a newly-formed planet, they say.

Space October 22, 2014

NASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over it

Mars observatories on and around the Red Planet are now being prepared for a close encounter with Comet Siding Spring. The cosmic rendezvous may provide more details about the formation of the solar system in its earliest days.

Space October 19, 2014

Earth water predates Solar System: Study may help understand formation of life on exoplanets

Heavy water may have come into the Solar System from outside our family of planets. Much of the water on Earth could be older than the planet itself, a study reveals.

Animals September 29, 2014

Rosetta lander snaps awesome selfie with target comet 67P/Churyumov-Gerasimenko

The Philae lander on the Rosetta spacecraft took an interplanetary selfie, with comet 67P/Churyumov-Gerasimenko in the background.

Space September 11, 2014

Interstellar dust found on spacecraft could be oldest samples ever

Tiny dust grains returned to Earth by comet-chasing spacecraft may have come from far beyond our solar system, scientists say. The may be the oldest known dust particles ever found.

Space August 14, 2014

Rosetta approaches deep space comet with ‘dark, dusty crust’

Spacecraft takes a comet's temperature, finds it too warm to have a cover of pure ice. Dark dust believed to cover much of its surface, scientists say.

Space August 1, 2014

Early Earth was bombarded by massive space rocks and oceans 'boiled away into steam'

The Hadean era of the Earth, the first era of our planet's formation, may have seen the crust melt and the oceans boil away.

Animals August 1, 2014

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