Abstract: To balance the requirement of long lifespan and limited launch mass in celestial body orbiting missions, limited input is an inevitable factor for spacecraft controller design. To deal with ...

WASHINGTON — Satellite manufacturer K2 Space announced plans to launch a three-spacecraft mission in 2027 on a dedicated SpaceX Falcon 9 rocket, with each satellite deploying to a different orbital ...

Two greenish-hued comets are swinging through the inner solar system this fall, offering a rare chance to spot them in the coming weeks. The comets, named C/2025 A6 (Lemmon) and C/2025 R2 (SWAN), are ...

Abstract: To ensure the safety of astronauts during crewed lunar exploration missions, it is crucial to develop a fast solution to the controllable set (CS) of direct abort orbits from Low Lunar Orbit ...

Even as its Ku-band, multi-orbit LEO/GEO electronically steerable antenna (ESA)-based inflight connectivity solution moves from strength to strength — the kit is installed on ~300 aircraft, is ...

October ushers in changing foliage, cooler temperatures, and the spooky season made eerier with less daylight. Costumes are donned and even the night sky wants to help set the mood. Much to the dismay ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have dubbed ...