Precision measurements made with the VLBA have revealed that a small, cool star 35 light-years from Earth is orbited by a Saturn-sized planet once every 221 days.
New detailed observations with NSF's NOIRLab facilities reveal a young exoplanet, orbiting a young star in the Hyades cluster, that is unusually dense for its size and age. Weighing in at 25 Earth-masses, and slightly smaller than Neptune, this exoplanet's existence is at odds with the predictions of leading planet formation theories.
New work uncovers new details about our Solar System's oldest planetary objects, which broke apart in long-ago collisions to form iron-rich meteorites. Their findings reveal that the distinct chemical signatures of these meteorites can be explained by the process of core crystallization in their parent bodies, deepening our understanding of the geochemistry occurring in the Solar System's youth.
A large number of the valley networks scarring Mars's surface were carved by water melting beneath glacial ice, not by free-flowing rivers as previously thought, according to new UBC research published today in Nature Geoscience. The findings effectively throw cold water on the dominant 'warm and wet ancient Mars' hypothesis, which postulates that rivers, rainfall and oceans once existed on the red planet.
Scientists have long known the earth cooled dramatically about 13,000 years ago, and the most likely explanation has been that it was caused by a massive object slamming into earth from space or bursting in the atmosphere. But now researchers have reported new evidence for another, more likely explanation - the eruption of a volcano on what is now the European continent, upending thinking about an event that shaped future evolution.
A new study shows other stars could have as many as seven Earth-like planets in the absence of a gas giant like Jupiter.
Stars viewed from a place called Dome A in Antarctica can finally be seen without their twinkle -- which means in much greater detail.
Meteorites give us insight into the early development of the solar system. Using the SAPHiR instrument at the Research Neutron Source Heinz Maier-Leibnitz (FRM II) at the Technical University of Munich (TUM), a scientific team has for the first time simulated the formation of a class of stony-iron meteorites, so-called pallasites, on a purely experimental basis.
Dome A, the highest ice dome on the Antarctic Plateau, could offer the clearest view on Earth of the stars at night, according to new research by an international team from China, Australia and the University of British Columbia (UBC). The challenge? The location is one of the coldest and most remote places on Earth.
The composition of Antarctic micrometeorites and other tiny but precious rocks such as those from space missions--is really hard to analyze without some sample loss. But a new technique should make it easier, cheaper and faster to characterize them while preserving more of the sample. The findings were published on the peer reviewed journal Meteoritics & Planetary Science on May 21.