Scientists Find Asteroids Are Missing, and Possibly Why
(PhysOrg.com) -- The patterns of missing asteroids are like the footprints of wandering giant planets preserved in the asteroid belt.
Giant planet ejected from the solar system
(PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in ...
Grains of sand from ancient supernova found in meteorites
(Phys.org) —It's a bit like learning the secrets of the family that lived in your house in the 1800s by examining dust particles they left behind in cracks in the floorboards.
Murchison Widefield Array: Square Kilometre Array precursor debuts
Solar storms, space junk and the formation of the Universe are about to be seen in an entirely new way with the start of operations today by the $51 million Murchison Widefield Array (MWA) radio telescope.
Chemical snapshot: Murchison meteorite reveals diversity of early Solar System
New finding affects understanding of formation of the solar system
(PhysOrg.com) -- A global collaboration including five University of Notre Dame researchers has revised the half-life of samarium-146 (146Sm), reducing it to 68 million years from 103 million years. The finding ...
Exploding star missing from formation of solar system
(Phys.org)—A new study published by University of Chicago researchers challenges the notion that the force of an exploding star prompted the formation of the solar system.
Free-floating planets in the Milky Way outnumber stars by factors of thousands
A few hundred thousand billion free-floating life-bearing Earth-sized planets may exist in the space between stars in the Milky Way. So argues an international team of scientists led by Professor Chandra Wickramasinghe, Director ...
Scientist discovers plate tectonics on Mars
(Phys.org) -- For years, many scientists had thought that plate tectonics existed nowhere in our solar system but on Earth. Now, a UCLA scientist has discovered that the geological phenomenon, which involves ...
NASA considers sending a telescope to outer solar system
Light pollution in our inner solar system, from both the nearby glow of the Sun and the hazy zodiacal glow from dust ground up in the asteroid belt, has long stymied cosmologists looking for a clearer take ...
NASA going to asteroid, bringing back samples
(PhysOrg.com) -- NASA is going to send a spacecraft to an asteroid and bring back samples to Earth.
First evidence of dynamo generation on an asteroid found
About 4.6 billion years ago, the solar system was little more than a tenuous disk of gas and dust. In the span of merely 10 million years, this soup evolved to form today's massive, complex planets. In the ...
Triton: A subsurface ocean?
Neptune's largest moon Triton is most likely a captured Kuiper Belt Object. The capture of icy Triton and the subsequent taming of its orbit likely led to the formation of a subsurface ocean through tidal ...
Dawn spacecraft reveals secrets of giant asteroid Vesta
(Phys.org) -- Findings from NASA's Dawn spacecraft reveal new details about the giant asteroid Vesta, including its varied surface composition, sharp temperature changes and clues to its internal structure. ...