If an emergency arises aboard China’s Tiangong space station in the next few days, its three astronaut residents could be in trouble. That trio — members of the Shenzhou 21
If an emergency arises aboard China’s Tiangong space station in the next few days, its three astronaut residents could be in trouble. That trio — members of the Shenzhou 21
TAMPA, Fla. — SES is adding another servicer to what is already the broadest and busiest satellite life-extension roster in the commercial geostationary orbit (GEO) market, with five missions now
Probably the most famous of the annual meteor showers will soon be reaching its maximum: The Leonids. These ultrafast meteors are expected to be at their best for North American
In this artist’s concept, the ocean-observing satellite Sentinel-6B orbits Earth with its deployable solar panels extended. Credit: NASA/JPL-Caltech NASA will provide live coverage of prelaunch and launch activities for Sentinel-6B,
A joint research team from the Institute of Geochemistry of the Chinese Academy of Sciences (IGCAS) and Shandong University has for the first time identified crystalline hematite (α-Fe2O3) and maghemite
Astronomers have discovered that the solar system may be moving through the cosmos over three times faster than was previously theorized. The discovery could have implications for the standard model
Heat maps of amino acid percent yields at 0 ºC relative to the starting HCN inventory with 1% and 30% survival factors of initial organic inventory. Columns correspond to varying
Earth isn’t the only planet to go through ice ages. A handful have hit our home planet in the last 2.5 billion years, with the most recent – which peaked
Photometric 2-minute cadence PDCSAP time series of TIC 4897275 (HD 85426) in TESS sectors 21 (top panel) and 48 (bottom panel) are shown in grey, with 30-minute binned data overlaid
Primary (circles, ≤ 2 mas) and reserve (triangles, 5 mas) candidate reference stars plotted in ecliptic coordinates in epoch J2027 and equinox 2027 with colors indicating rankings. The CVZs are




