News tagged with early solar system
Related topics: solar system , meteorite
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 ...
May 10, 2012 |
2.6 / 5 (17) |
53
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. ...
Space & Earth / Space Exploration
Apr 26, 2012 |
4.4 / 5 (7) |
4
|
Tiny 'spherules' reveal details about Earth's asteroid impacts
(Phys.org) -- Researchers are learning details about asteroid impacts going back to the Earth's early history by using a new method for extracting precise information from tiny "spherules" embedded in layers ...
Space & Earth / Earth Sciences
Apr 25, 2012 |
5 / 5 (1) |
1
|
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 ...
Apr 02, 2012 |
4.7 / 5 (12) |
11
|
Neptune on tiptoes
(PhysOrg.com) -- The formation and development of the solar system, long a topic of study for philosophers and scientists, is today often used as a case study for the formation and development of planetary ...
Mar 14, 2012 |
4.3 / 5 (3) |
0
|
Building blocks of early Earth survived collision that created moon
Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth's mantle (the rocky layer between Earth's metallic core and crust) formed when the planet was much smaller than it is now, an ...
Space & Earth / Earth Sciences
Feb 18, 2012 |
5 / 5 (5) |
6
New research casts doubt on the late heavy bombardment
Was the early solar system bombarded with lots of big impacts? This is a question that has puzzled scientists for over 35 years. And it’s not just an academic one. We know from rocks on Earth that life ...
Space & Earth / Space Exploration
Jan 06, 2012 |
4.5 / 5 (4) |
0
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 ...
Space & Earth / Space Exploration
Dec 20, 2011 |
4.8 / 5 (9) |
30
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 ...
Nov 10, 2011 |
4.2 / 5 (21) |
34
|
Cosmic voyager has a layover in St. Louis
Last January two amateur meteorite hunters dropped by Randy Korotev's office at Washington University in St. Louis to show him their latest purchase, a 17-kilogram pallasite meteorite found in 2006 near Conception ...
Space & Earth / Space Exploration
Nov 10, 2011 |
5 / 5 (2) |
0
Rendezvous with a near Earth object
(PhysOrg.com) -- One of the most accessible goals for human spaceflight is a rendezvous with a Near Earth Object (NEO). NEOs are asteroids or comets whose orbits take them close to the earth's orbit. An NEO ...
Space & Earth / Space Exploration
Oct 25, 2011 |
not rated yet |
1
Earth-bound asteroids come from stony asteroids, new studies confirm
Researchers got their first up-close look at dust from the surface of a small, stony asteroid after the Hayabusa spacecraft scooped some up and brought it back to Earth. Analysis of these dust particles, detailed ...
Space & Earth / Space Exploration
Aug 25, 2011 |
5 / 5 (6) |
4
|
Amino acid alphabet soup
All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?
Aug 19, 2011 |
4.4 / 5 (5) |
9
|
Meteorites: Tool kits for creating life on Earth
Meteorites hold a record of the chemicals that existed in the early Solar System and that may have been a crucial source of the organic compounds that gave rise to life on Earth. Since the 1960s, scientists have been trying ...
Space & Earth / Space Exploration
Aug 08, 2011 |
4.3 / 5 (6) |
3
|
Jupiter-bound Juno spacecraft mated to its rocket
NASA's Juno spacecraft completed its last significant terrestrial journey today, July 27, with a 15-mile (25-kilometer) trip from Astrotech Space Operations in Titusville, Fla., to its launch pad at the Cape ...
Space & Earth / Space Exploration
Jul 28, 2011 |
5 / 5 (2) |
0
