Comets and asteroids - page 3

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Halloween 2015 for skywatchers: Newly discovered asteroid makes close approach to Earth

NASA's scientists discovered a new asteroid on October 10, 2015, using the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS) mounted on Mount Haleakala, Hawai'i. Asteroid was named 2015 TB145, and is expected to make the closest approach to...

October 20, 2015

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Comet 67P's mysterious form

The team behind The ThunderBolts Project has started a new series of reports that will discuss the latest scientific papers on the European Space Agency’s Rosetta mission to comet 67P. In addition to countless unresolved puzzles facing comet scientists, they...

October 19, 2015

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Rosetta gathers data from the south pole of Comet 67P/Churyumov-Gerasimenko

Several months after the arrival at Comet 67P/Churyumov-Gerasimenko (67P/C-G) in August 2014, the Rosetta spacecraft has finally managed to observe and characterize comet's southern polar regions. The only instrument that was able to study this dark region of...

October 02, 2015

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SOHO discovers its 3000th comet

The Solar and Heliospheric Observatory (SOHO) detected its 3000th comet on September 13, 2015. The newest discovery confirmed SOHO's reputation for being the greatest comet finder in the history so far.SOHO is a joint project of the European Space Agency and NASA on

September 15, 2015

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First Asteroid Terrestrial-impact Last Alert system (ATLAS) fully operational

The first Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope is now in operation on Haleakala volcano, on the Hawaiian island of Maui. The telescope is a part of an asteroid impact early system project that was developed by the University of Hawai'i and

August 15, 2015

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Powerful outburst event observed at Comet 67P two weeks before the perihelion

On July 29, 2015, Rosetta’s OSIRIS camera captured images showing a dramatic outburst at Comet 67P/Churyumov–Gerasimenko, registered by several of its instruments from their vantage point 186 km (115 miles) from the comet.As forecasted, the comet reaches

August 13, 2015

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Rosetta's one year at the Comet 67P/Churyumov–Gerasimenko

With comet 67P’s closest approach to the Sun less than one week away, ESA’s unmanned spacecraft Rosetta celebrated one year at the comet on August 6, 2015.After a 10-year chase spanning more than 6.4 billion km (4 billion miles) across the Solar System, the

August 08, 2015

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Rosetta mission conference - update, latest results and what lies ahead

The following video is a replay of media briefing held at the Paris Air Show on June 17, 2015 with members of the Rosetta team. The briefing includes an update on the mission, some of the latest results, and an outline what still lies ahead. ESA’s Rosetta comet-ch

June 17, 2015

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The electrochemistry of Comets with Dr. Franklin Anariba

It is a great paradox in comet science: We are told that a comet nucleus is a ball of ice, or dirty snowball, or icy fluff ball that accreted billions of year ago in the solar system’s infancy. Comets are said to sublimate ices as they move toward the sun, and

April 01, 2015

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Asteroid 2014 YB35 to safely flyby Earth on Friday, March 27, 2015

A large asteroid named 2014 YB35 will flyby Earth at a safe distance of 11.6 LD (lunar distances) or about 4.45 million km (2.7 million miles) at 06:20 UTC on Friday, March 27, 2015. This asteroid is approximately 440 - 990 meters in diameter and is traveling at a relat

March 26, 2015

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Rosetta makes first detection of molecular nitrogen at a comet

ESA's Rosetta spacecraft has made the first measurement of molecular nitrogen at a comet, providing clues about the temperature environment in which Comet 67P/Churyumov-Gerasimenko formed, the agency reports.The in situ detection of molecular nitrogen has long been

March 20, 2015

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New desktop app with potential to increase asteroid detection now available to public

A software application based on an algorithm created by a NASA challenge with the potential to increase the number of new asteroid discoveries by amateur astronomers is now available to the public. The analysis of images using this algorithm showed a 15% increase in pos

March 16, 2015

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Why don’t comets melt in the Sun?

Sungrazer comets that survive perihelion extremely close to the Sun is a longstanding puzzle for comet science. In reality, observations going back centuries reveals that a comet’s activity has little or nothing to do with solar warming.Comets sometimes flare or e

March 04, 2015

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Unusual comet skirting past the Sun

An unusual comet named SOHO-2875 is skirting past the Sun since February 18, 2015 and is still visible on LASCO C3 imagery. At first it appeared to be a small object about to be disintegrated by the Sun's heat, but surprisingly it emerged intact and is now brighteni

February 21, 2015

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Crystal comets

The “dusty snowball” theory of comets needs attention, since there are crystals that need high temperatures to form in the matrix of at least two.Recently, the composition of comet 67P/Churyumov-Gerasimenko (67P/C-G) was discussed in the scientific press. It

February 16, 2015

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Radar images of binary asteroid 2004 BL86 as it flew past Earth on January 26

Asteroid 2004 BL86, which made the closest approach to Earth on January 26, 2015 for the at least the next two centuries, is in fact a binary asteroid, meaning it has its own moon.Scientists working with NASA's Deep Space Network antenna at Goldstone, California hav

January 27, 2015

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67P - The violent birth of a comet

The electric comet idea forces us to consult the astronomical testimony of our earlier forebears, where independent accounts, told with different words and different symbols in different parts of the world, convey a story of planetary catastrophe. Watch Update #1: The R

January 23, 2015