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Search results for planetesimals

Space Exploration Apr 8, 2019

Iron volcanoes may have erupted on metal asteroids

Metallic asteroids are thought to have started out as blobs of molten iron floating in space. As if that's not strange enough, scientists now think that as the metal cooled and solidified, volcanoes spewing liquid iron could ...

Astronomy Apr 4, 2019

Heavy metal planet fragment survives destruction from dead star

A fragment of a planet that has survived the death of its star has been discovered by University of Warwick astronomers in a disc of debris formed from destroyed planets, which the star ultimately consumes.

Space Exploration Apr 2, 2019

SwRI to conduct largest-ever Hubble survey of the Kuiper Belt

NASA's Space Telescope Science Institute (STScI) recently awarded Southwest Research Institute the largest Hubble Space Telescope (HST) solar system program ever, with 206 of Hubble's orbits around the Earth allocated to ...

Space Exploration Mar 18, 2019

New Horizons team unravels the many mysteries of Ultima Thule

The farthest object ever explored is slowly revealing its secrets, as scientists piece together the puzzles of Ultima Thule – the Kuiper Belt object NASA's New Horizons spacecraft flew past on New Year's Day, four billion ...

Astronomy Feb 19, 2019

Citizen scientists invited to join quest for new worlds

The Backyard Worlds: Planet 9 project re-launches this week, with a call to volunteer citizen scientists to join the search for cold worlds near the Sun. With its newly revamped online interface and equipped with twice as ...

Earth Sciences Feb 15, 2019

Carbonaceous chondrites provide clues about the delivery of water to Earth

An international study led by researchers from the Institute of Space Sciences, from the Spanish National Research Council (CSIC) and the Institut d'Estudis Espacials de Catalunya has discovered that carbonaceous chondrites, ...

Astronomy Feb 11, 2019

Do you like Earth's solid surface and life-inclined climate? Thank your lucky (massive) star

Earth's solid surface and moderate climate may be due, in part, to a massive star in the birth environment of the Sun, according to new computer simulations of planet formation.

Space Exploration Feb 9, 2019

New Horizons' evocative farewell glance at Ultima Thule

An evocative new image sequence from NASA's New Horizons spacecraft offers a departing view of the Kuiper Belt object (KBO) nicknamed Ultima Thule—the target of its New Year's 2019 flyby and the most distant world ever ...

Space Exploration Feb 4, 2019

'Oumuamua could be the debris cloud of a disintegrated interstellar comet

Since it was first detected hurling through our solar system, the interstellar object known as 'Oumuamua has been a source of immense scientific interest. Aside from being extrasolar in origin, the fact that it has managed ...

Space Exploration Jan 28, 2019

Missing-link in planet evolution found

For the first time ever, astronomers have detected a 1.3 km radius body at the edge of the solar system. Kilometer-sized bodies like the one discovered have been predicted to exist for more than 70 years. These objects acted ...

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