Cosmic rays are charged subnuclear particles that move close to the speed of light, constantly raining down on the Earth. These particles are relativistic, as defined by Albert Einstein's special relativity, and manage to ...
Plasma Physics
Aug 24, 2021
27
652
A scientifically mysterious, isolated cloud bigger than the Milky Way has been found by a research team at The University of Alabama in Huntsville (UAH) in a "no-man's land" for galaxies.
Astronomy
Jul 1, 2021
18
5483
More than 40 years since they launched, the Voyager spacecraft are still making discoveries.
Astronomy
Dec 3, 2020
2
478
Observations of magnetic fields in interstellar clouds made of gas and dust indicate that these clouds are strongly magnetized, and that magnetic fields influence the formation of stars within them. A key observation is that ...
Astronomy
Aug 18, 2020
5
140
Scientists have developed a new prediction of the shape of the bubble surrounding our solar system using a model developed with data from NASA missions.
Astronomy
Aug 5, 2020
1
416
Stars form within giant clouds of gas and dust that pervade galaxies like our own Milky Way. This image depicts one such cloud, known as Orion A, as seen by ESA's Herschel and Planck space observatories.
Astronomy
Nov 18, 2019
2
160
One year ago, on Nov. 5, 2018, NASA's Voyager 2 became only the second spacecraft in history to leave the heliosphere—the protective bubble of particles and magnetic fields created by our Sun. At a distance of about 11 ...
Space Exploration
Nov 5, 2019
3
277
A probe launched by NASA four days after Elvis died has delivered a treasure trove of data from beyond the "solar bubble" that envelops Earth and our neighbouring planets, scientists reported Monday.
Astronomy
Nov 4, 2019
0
1505
Out at the boundary of our solar system, pressure runs high. This pressure, the force plasma, magnetic fields and particles like ions, cosmic rays and electrons exert on one another when they flow and collide, was recently ...
Space Exploration
Oct 8, 2019
20
3192
A new, more accessible and much cheaper approach to surveying the topology and strength of interstellar magnetic fields—which weave through space in our galaxy and beyond, representing one of the most potent forces in nature—has ...
Astronomy
Jun 10, 2019
38
158
