The US wants a ‘Space Force’ to be the sixth branch of the US military. Shutterstock/Carlos Romero

The US plan for a Space Force risks escalating a ‘space arms race’

The US plan for a Space Force risks escalating a ‘space arms race’ The US wants a ‘Space Force’ to be the sixth branch of…

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Illustration of Pioneer Venus Multiprobe approaching Venus. Image credit: NASA/ Paul Hudson

40 Years Ago, Pioneer Venus Multiprobe Launched to Study the Cloud-Shrouded Planet Venus

40 Years Ago, Pioneer Venus Multiprobe Launched to Study the Cloud-Shrouded Planet Venus On August 8, 1978, the Pioneer Venus Multiprobe spacecraft launched to study…

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taken on July 25 by the Transiting Exoplanet Survey Satellite. The angular extent of the widest field of view is six degrees. Visible in the images are the comet C/2018 N1, asteroids, variable stars, asteroids and reflected light from Mars. TESS is expected to find thousands of planets around other nearby stars. Credit: Massachusetts Institute of Technology/NASA’s Goddard Space Flight Center

NASA’s Planet-Hunting TESS Catches a Comet Before Starting Science

NASA’s Planet-Hunting TESS Catches a Comet Before Starting Science Before NASA’s Transiting Exoplanet Survey Satellite (TESS) started science operations on July 25, 2018, the planet…

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Pie in the sky? Mars Ice Home concept. NASA/Clouds AO/SEArch

Sorry Elon Musk, but it’s now clear that colonising Mars is unlikely – and a bad idea

Sorry Elon Musk, but it’s now clear that colonising Mars is unlikely – and a bad idea Pie in the sky? Mars Ice Home concept.…

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Kepler 452-b. NASA Ames/JPL-Caltech/T. Pyl

Exoplanets: how we used chemistry to identify the worlds most likely to host life

Exoplanets: how we used chemistry to identify the worlds most likely to host life Kepler 452-b is looking like a good candidate for having evolved…

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Four members of the observation team scan the sky while waiting for the start of the 2014 MU69 occultation, early on the morning of June 3, 2017. The target field was in the Milky Way, seen here from their observation site in the Karoo desert near Vosburg, South Africa. They used portable telescopes in an attempt to observe MU69, a small Kuiper Belt object (now nicknamed Ultima Thule) and the next flyby target of NASA's New Horizons spacecraft, pass in front of a star. New Horizons team members will attempt similar observations of Ultima this week in Colombia and Senegal. Credits: NASA/JHUAPL/SwRI/Henry Throop

New Horizons Team Prepares for Stellar Occultation Ahead of Ultima Thule Flyby

New Horizons Team Prepares for Stellar Occultation Ahead of Ultima Thule Flyby Successfully observing an object from more than four billion miles away is difficult,…

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Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we now know, is a lake of liquid water. NASA/JPL/MSSS

Discovered: a huge liquid water lake beneath the southern pole of Mars

Discovered: a huge liquid water lake beneath the southern pole of Mars Mars’ south polar cap, as seen from Mars Global Surveyor. Buried beneath, we…

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Radiation from Jupiter can destroy molecules on Europa’s surface. Material from Europa’s ocean that ends up on the surface will be bombarded by radiation, possibly destroying any biosignatures, or chemical signs that could imply the presence of life. Credits: NASA/JPL-Caltech

Radiation Maps of Jupiter’s Moon Europa: Key to Future Missions

Radiation Maps of Jupiter’s Moon Europa: Key to Future Missions New comprehensive mapping of the radiation pummeling Jupiter’s icy moon Europa reveals where scientists should…

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Proton aurora at Mars. First, a solar wind proton approaches Mars at high speed and encounters a cloud of hydrogen surrounding the planet. The proton steals an electron from a Martian hydrogen atom, thereby becoming a neutral atom. The atom passes through the bowshock, a magnetic obstacle surrounding Mars, because neutral particles are not affected by magnetic fields. Finally, the hydrogen atom enters Mars' atmosphere and collides with gas molecules, causing the atom to emit ultraviolet light. Credits: NASA/MAVEN/Goddard Space Flight Center/Dan Gallagher

NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars

NASA’s MAVEN Spacecraft Finds That “Stolen” Electrons Enable Unusual Aurora on Mars Auroras appear on Earth as ghostly displays of colorful light in the night…

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NASA’s Cassini spacecraft captures Saturn’s largest moon, Titan, passes in front of the planet and its rings. NASA/JPL-Caltech/Space Science Institute

Capturing the shadow of Saturn’s moon Titan from right here on Earth

Capturing the shadow of Saturn’s moon Titan from right here on Earth NASA’s Cassini spacecraft captures Saturn’s largest moon, Titan, passes in front of the…

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Edwin E. ‘Buzz’ Aldrin Jr. poses for a photograph beside the U.S. flag deployed on the moon during the Apollo 11 mission on July 20, 1969. Neil A. Armstrong/NASA/AP Photo

Who owns the moon? A space lawyer answers

Who owns the moon? A space lawyer answers Edwin E. ‘Buzz’ Aldrin Jr. poses for a photograph beside the U.S. flag deployed on the moon…

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