Astronomers say they have solved an outstanding problem that challenged our understanding of how the universe evolved—the spatial distribution of faint satellite galaxies orbiting the Milky Way.
Astronomy
Dec 19, 2022
31
659
A NASA-led research team used satellite imagery and artificial intelligence methods to map billions of discrete tree crowns down to a 50-cm scale. The images encompassed a large swath of arid northern Africa, from the Atlantic ...
On March 23, sky observers marveled at a gorgeous display of northern and southern lights. It was reminder that when our sun gets active, it can spark a phenomenon called "space weather." Aurorae are among the most benign ...
Planetary Sciences
Apr 3, 2023
0
116
The promise for American agriculture is tantalizing: healthier soil, more carbon kept in the ground, less fertilizer runoff, and less need for chemicals. The reality of planting cover crops during the off-season—a much-touted ...
Ecology
Nov 8, 2022
0
118
A pilot project has estimated emissions and removals of carbon dioxide in individual nations using satellite measurements.
Earth Sciences
Mar 7, 2023
3
261
By analyzing the data from the Spektr-RG (SRG) spacecraft and the Transiting Exoplanet Survey Satellite (TESS), astronomers have detected a new magnetic cataclysmic variable. The new object, designated SRGE J075818-612027, ...
Scientists say they have identified the exact mechanism responsible for the exceptional tsunami that spread quickly across the world after the colossal eruption of the Tonga volcano earlier this year.
Earth Sciences
Jun 13, 2022
0
597
There is a mystery in our solar system surrounding the orbits of Kuiper belt objects. More than one trillion icy objects smaller than our moon orbit the sun in a donut-shaped ring beyond Neptune. Oddly, a cluster of outer ...
It's one of the stranger sights of the modern Space Age. Recently, we found ourselves under the relatively dark skies of southern Spain. Sure enough, within a few minutes, we caught sight of a chain of flashing "stars" winking ...
Astronomy
Aug 15, 2022
0
132
SpaceX's Elon Musk said Thursday that the first orbital flight of his towering Starship—the world's most powerful rocket ever built—could come in another month or two.
Space Exploration
Feb 11, 2022
9
625
