Comets and asteroids - page 4

saturns_moon_phebe_200km_f

Giant comets pose a much greater hazard to life than asteroids

The discovery of hundreds of giant comets in the outer planetary system over the last two decades means that these objects pose a much greater hazard to life than asteroids, a team of astronomers from Armagh Observatory and the University of Buckingham report. The...

December 22, 2015

kuiper_belt_object_ _1994_JR1_f

The closest images ever of a distant Kuiper Belt object - 1994 JR1

There is a region of space filled with comets beyond the gas giant Neptune known as the Kuiper Belt. This expanse holds trillions of objects - remnants of the early Solar System - and NASA's New Horizons spacecraft recently took the closest images of one of...

December 08, 2015

neo_f

Small asteroid makes a close Earth flyby at 0.09 LD

A small asteroid discovered on November 14, 2015, made a close flyby to Earth only a couple of hours after it was observed. The asteroid named 2015 VY105 came as close to our planet as an average geostationary satellite. However, good news is that 2015 VY105 was so...

November 16, 2015

halloween_asteroid_feat

New radar images of the 'spooky' 2015 TB145 asteroid

The 'spooky' 2015 TB145 asteroid has made a safe pass trough Earth's neigborhood on October 31, 2015, and scientist were able to obtain new high resolution radar images of its surface, quite distinct to the first images provided by the Arecibo radar on...

November 05, 2015

roseta

Rosetta detects large amounts of pure oxygen emitting from Comet 67P

Researchers led by Andre Bieler from the University of Michigan have found a large amount of molecular oxygen (O2) is being released by the Comet 67P/Churyumov–Gerasimenko. Pure molecular oxygen is extremely rare in the universe and this discovery has...

October 30, 2015

lovejoy

Comet Lovejoy lives up to its name, releases alcohol and sugar into space

A group of researchers have found that comet Lovejoy is emitting ethyl alcohol and sugar as it traverses through space. Their discovery adds evidence to the theory that comets may have "seeded" Earth with complex organic molecules which led to the...

October 28, 2015

asteroid_feat

Halloween treat: Asteroid 2015 TB145 to flyby Earth at 1.3 LD on October 31

The newly discovered asteroid 2015 TB145 will flyby our planet at the closest approach distance of about 1.3 lunar distances at 17:05 UTC on October 31, 2015. NASA's scientists are closely monitoring the asteroid, dubbed the 'Halloween asteroid', with...

October 27, 2015

asteroid_night_sky

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

comet_67p_esa_f

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

rosseta_feat

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

soho_3000_comet

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

atlas asteroid telescope 1

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

july292015_c67p_powerful_outburst_f

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

The_comet_67p

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

comet_67p_esa_june12015_navcam

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

TRAPPIST_ESO_Comet_ISON

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

Asteroid_2014_YB35_f2

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