Space

Outer space, or simply space, is the expanse that exists beyond the Earth and between celestial bodies. Outer space is not completely empty—it is a hard vacuum containing a low density of particles, predominantly a plasma of hydrogen and helium, as well as electromagnetic radiation, magnetic fields, neutrinos, dust, and cosmic rays. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins (−270.45 °C; −454.81 °F).

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NASA Astronauts Safely Splash Down after First Commercial Crew Flight to Space Station

“Two NASA astronauts splashed down safely in the Gulf of Mexico Sunday for the first time in a commercially built and operated American crew spacecraft, returning from the International Space Station to complete a test flight that marks a new …

China’s Tianwen-1 Mars rover rockets away from Earth

“The six-wheeled robot, encapsulated in a protective probe, was lifted off Earth by a Long March 5 rocket from the Wenchang spaceport on Hainan Island at 12:40 local time (04:40 GMT). It should arrive in orbit around the …

For Mars, Hope (and a little Perseverance, too) shines in UAE’s ‘Apollo moment’

“The United Arab Emirates is on its way to Mars, claiming the title of first Arab country to launch an interplanetary mission, which it designed and built in just six years and dubbed Hope. The Hope Mars orbiter launched toward …

Don’t miss Comet NEOWISE in the evening sky now. It won’t be back for 6,800 years.

“An amazing comet that thrilled early-morning stargazers earlier this month is now visible in the evening sky, and it’s a sight you won’t want to miss. After all, this comet won’t be back for 6,800 years …

Proba-V passes the torch

“ESA’s cubic-metre-sized Proba-V minisatellite, seen left, has ended its seven-year global mission to monitor the daily growth of all Earth’s vegetation, a task being taken up by Copernicus Sentinel-3 instead, seen right. Proba-V was launched in 2013 to …

Rocket Lab Mission Fails to Reach Orbit

“Following a successful lift-off, first stage burn, and stage separation, Rocket Lab experienced an anomaly during its 13th Electron mission ‘Pics Or It Didn’t Happen.’ The issue occurred approximately four minutes into the flight on July 4, 2020 and …

The Euclid space telescope is coming together

“ESA’s Euclid mission has reached another milestone on its journey towards launch. Its two instruments are now built and fully tested. These have been delivered to Airbus Defence and Space in Toulouse, France, where they are now being integrated …

SpaceX launches advanced GPS satellite for US Space Force, sticks rocket landing

“SpaceX successfully launched its 11th mission of the year, lofting a next-generation global positioning satellite into space for the U.S. Space Force. A shiny, white Falcon 9 rocket took to the skies today (June 30) at 4:10 p …

China’s GPS rival Beidou is now fully operational after final satellite launched

“China launched the last satellite in its Beidou navigation network on Tuesday, completing a new rival to GPS and cementing its place in an elite group of countries with their own global navigation satellite systems (GNSS). To date, there are …

NASA’s TESS, Spitzer Missions Discover a World Orbiting a Unique Young Star

“The system, known as AU Mic for short, provides a one-of-a-kind laboratory for studying how planets and their atmospheres form, evolve and interact with their stars. “AU Mic is a young, nearby M dwarf star. It’s surrounded by a …