Energetics associated with the occupancy of the K1 site and the position of the M2 ion. (A) Free energy surface of the concerted motions of Prp11 Lys10 and M2, with
Energetics associated with the occupancy of the K1 site and the position of the M2 ion. (A) Free energy surface of the concerted motions of Prp11 Lys10 and M2, with
Evidence for ribozyme mass extinction. (A) Abundance distribution across all ten known small self-cleaving ribozyme families, showing the hammerhead’s 91% dominance, a pattern characteristic of disaster taxa following mass extinction
A Northrop Grumman Cygnus XL spacecraft is captured by the Canadarm2 on the International Space Station on Monday, April 13, 2026. Image: NASA The next cargo run to the International
NASA Artemis 2 astronauts Victor Glover and Christina Koch celebrate after splashing down back on Earth. (Image credit: NASA/Bill Ingalls) The Artemis 2 astronauts are all smiles back on Earth.
HELSINKI — China has conducted what appears to be a wet dress rehearsal for its Long March 10B, paving the way for a potential launch within weeks. The wet dress
COLORADO SPRINGS — Gravitics is preparing to test a space architecture built around a large orbital platform designed to store and deploy multiple spacecraft. Customers such as the U.S. Space
Earth (ESD) Earth Explore Explore Earth Science Agriculture Air Quality Climate Change Freshwater Life on Earth Severe Storms Snow and Ice The Global Ocean Science at Work Earth Science at
Easy access to space depends as much on ground communications as on launch availability or satellite design. In a quickly growing commercial space market, an increasing number of operational services
COLORADO SPRINGS — Citra Space said it raised $15 million in a Series A funding round led by Washington Harbour Partners, as the Colorado-based startup looks to expand its software
COLORADO SPRINGS — Atomic-6, a supplier of specialized materials and subsystems for satellites, is launching an online marketplace designed to simplify how companies procure spacecraft for in-space computing, the company






