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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).

Nissan unveils lunar rover prototype jointly developed with Japan Aerospace Exploration Agency

“Nissan Motor Co., Ltd. today unveiled a lunar rover prototype jointly developed with the Japan Aerospace Exploration Agency (JAXA) at its Nissan Futures event here. The JAXA Space Exploration Innovation Hub Center is conducting research on lunar rovers — a key …

SpaceX’s Starlink internet satellites forced to dodge Russian anti-satellite test debris

“Debris from Russia’s anti-satellite missile test last month has forced some SpaceX Starlink internet satellites to dodge in order to avoid in-orbit collisions, the company’s CEO Elon Musk said Tuesday (Nov. 30). The Russian anti-satellite missile test, which …

Test tanks fuelled for ESA’s Themis reusable first stage

“Recently completed tests of two propellant tanks set a first technological milestone in the ESA reusability roadmap towards the demonstration of a reusable first stage vehicle called Themis. Through the Themis programme, ESA aims to assess the economic value of …

Astra Reaches Orbit

“Astra Space, Inc., successfully completed its first commercial orbital launch for the United States Space Force late Friday night, November 19, 2021, PST. The launch, STP-27AD2, was conducted from Astra’s Kodiak Spaceport, located at the Pacific Spaceport Complex …

NASA, SpaceX Launch DART: First Test Mission to Defend Planet Earth

“NASA’s Double Asteroid Redirection Test (DART), the world’s first full-scale mission to test technology for defending Earth against potential asteroid or comet hazards, launched Wednesday at 1:21 a.m. EST on a SpaceX Falcon 9 rocket from …

Parker Solar Probe Completes a Record-Setting Swing by the Sun

“Blazing along at space-record speeds that would get it from Earth to the Moon in under an hour, NASA’s Parker Solar Probe completed its 10th close approach to the Sun on Nov. 21, coming within 5.3 million miles …

An Almost Total Lunar Eclipse

“On November 19, 2021 (late evening of the 18th in some time zones), the Moon passes into the shadow of the Earth, creating a partial lunar eclipse so deep that it can reasonably be called almost total. What is an …

NASA’s Perseverance Captures Challenging Flight by Mars Helicopter

“Recently downlinked imagery of a September flight has allowed the rover imaging team to put together a video of rotorcraft performing to near-perfection. Video footage from NASA’s Perseverance Mars rover of the Ingenuity Mars Helicopter’s 13th flight on …

Rocket Lab launches 2 satellites to orbit, recovers Electron booster

“Rocket Lab successfully launched two satellites into orbit and recovered the mission’s booster, taking another step in its quest to build a partially reusable launch vehicle. The company’s two-stage Electron rocket topped with two commercial Earth-observation satellites lifted …

Chinese astronauts’ EVAs to help extend mechanical arm

“The extravehicular activities (EVAs) carried out by two Chinese astronauts from Sunday evening till early Monday morning will help expand the capabilities of the mechanical arm on the country’s space station, said the China Academy of Space Technology (CAST …