Astronomy
Feb 15, 2021
Comet or asteroid: What killed the dinosaurs and where did it come from?
It forever changed history when it crashed into Earth about 66 million years ago.
Search results for asteroid belt
Space Exploration
Feb 9, 2021
Jupiter's Trojan asteroids offer surprises
A new study out this month suggests that Jupiter's Trojan asteroids may be more peculiar than previously thought. The Trojan asteroids are rocky objects which orbit the sun just ahead of and just behind the gas giant, in ...
Space Exploration
Feb 2, 2021
NASA's Psyche mission moves forward, passing key milestone
Now just a year and a half from launch, the mission to explore a metal-rich asteroid will soon begin assembling and testing the spacecraft.
Astronomy
Jan 28, 2021
What did the solar system look like before all the planets migrated?
Early planetary migration in the solar system has been long established, and there are myriad theories that have been put forward to explain where the planets were coming from. Theories such as the Grand Tack Hypothesis an ...
Space Exploration
Jan 20, 2021
Physicist proposes human-populated mega-satellite orbiting Ceres
Physicist Pekka Janhunen with the Finnish Meteorological Institute has developed a novel idea to colonize a place other than the Earth—and it is not the moon or Mars. Instead, Janhunen is suggesting in a paper posted on ...
Astronomy
Jan 12, 2021
Reconstructing the solar system's original architecture
As the solar system was developing, the giant planets (Jupiter and Saturn) formed very early, and as they grew, they migrated both closer to and further away from the sun to stay in gravitationally stable orbits.
Astronomy
Dec 21, 2020
Study finds meteoric evidence for a previously unknown asteroid
A Southwest Research Institute-led team of scientists has identified a potentially new meteorite parent asteroid by studying a small shard of a meteorite that arrived on Earth a dozen years ago. The composition of a piece ...
General Physics
Dec 9, 2020
Accessing the arches of chaos in the solar system for fast transport
Space manifolds form the boundaries of dynamic channels to provide fast transport to the innermost and outermost reaches of the solar system. Such features are an important element in spacecraft navigation and mission design, ...
Space Exploration
Dec 7, 2020
Asteroid Ryugu dust delivered to Earth; NASA astrobiologists prepare to probe it
On Dec. 6 local time (Dec. 5 in the United States), Japanese spacecraft Hayabusa2 dropped a capsule to the ground of the Australian Outback from about 120 miles (or 200 kilometers) above Earth's surface. Inside that capsule ...
Astronomy
Dec 4, 2020
Researchers uncover key clues about the solar system's history
In a new paper published in the journal Nature Communications Earth and Environment, researchers at the University of Rochester were able to use magnetism to determine, for the first time, when carbonaceous chondrite asteroids—asteroids ...
