How did the Solar System's planets come to be? The leading theory is something known as the "protoplanet hypothesis", which essentially says that very small objects stuck to each other and grew bigger and bigger—big enough ...
Space Exploration
Jan 30, 2015
7
48
Textbooks often cite that planetary nebulae (PNe, plural) represent an endstate for lower-mass single stars. But conversely, recent research suggests that most PNe stem from binary systems. The lowest mass star theorized ...
Astronomy
Apr 19, 2013
0
0
Helium-3, a rare isotope of helium gas, is leaking out of Earth's core, a new study reports. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside a solar nebula, which has ...
Earth Sciences
Mar 28, 2022
2
728
Where did Earth's global ocean come from? A team of Arizona State University geoscientists led by Peter Buseck, Regents' Professor in ASU's School of Earth and Space Exploration (SESE) and School of Molecular Sciences, has ...
Earth Sciences
Nov 7, 2018
12
847
The most accurate laboratory measurements yet made of magnetic fields trapped in grains within a primitive meteorite are providing important clues to how the early solar system evolved. The measurements point to shock waves ...
Space Exploration
Nov 13, 2014
6
1
Using data from the retired Stratospheric Observatory for Infrared Astronomy (SOFIA)—a joint project of NASA and the German Space Agency at DLR—Southwest Research Institute scientists have discovered, for the first time, ...
Astrobiology
Feb 12, 2024
1
5485
The solar system is old. Like, dial-up-fax-machine-old. 4.6 billion years to be specific. The solar system has nothing on the universe. It's been around for 13.8 billion years, give or take a few hundred million. That means ...
Astronomy
May 29, 2015
18
188
Dammit, science people! Why are you always firing probes "outwards"? Then they have to go past all this stuff, like planets and asteroids and crap to escape the solar system. Don't you realize that if we want to see what's ...
Space Exploration
Jul 10, 2015
1
35
Improved age data for the Moon suggests that it is much younger than previously believed according to scientists presenting at a Royal Society discussion meeting entitled Origins of the Moon this week (23 September). Professor ...
Space Exploration
Sep 25, 2013
12
0
A new study, conducted by scientists at The University of New Mexico, found ancient, primordial helium-3 leaking from the Earth's core, suggesting the planet formed inside a solar nebula, stirring further debate among scientists.
Earth Sciences
May 7, 2022
0
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