The US has to win in space if it doesn't want to lose future wars, a top Marine general says

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U.S. Marine Corps Lance Cpl. Dantrel Gandy, a Low Altitude Air Defense gunner with Alpha Battery, 2nd LAAD Platoon, Marine Medium Tilt Rotor Squadron – 363 (Reinforced), with Marine Rotational Force – Darwin, observes a High Mobility Artillery Rocket System launch during Exercise Loobye at Bradshaw Field Training Area, NT, Australia, Aug.

What you think are aurora may actually be a different phenomenon scientists are calling 'Steve'

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A composite image shows a STEVE (Strong Thermal Emission Velocity Enhancement) and the Milky Way at Childs Lake, Manitoba, Canada.
This composite image shows a STEVE (Strong Thermal Emission Velocity Enhancement) and the Milky Way at Childs Lake, Manitoba, Canada.

Krista Trinder/NASA Goddard Space Flight Center

When to watch the spectacular Geminid meteor shower this week. NASA says skies are ideal for viewing it.

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geminid shower kenneth brandon
Skywatcher Kenneth Brandon wrote, "This shot is a composite of about 700 frames from a time-lapse I took in Big Sur, CA. I found 61 frames with meteors in them. Then I stacked the frames and created masks for each meteor. "

Kenneth Brandon

NASA's James Webb gave a stunning look at the death throes of a star, capturing details Hubble missed

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A picture shows a cloud of cosmic gas with orange blue and green highlights, showing structure.
JWST captured a new picture of supernova remnant Cassiopeia A. The picture was taken in near-infrared and processed to show the invisible light in visible color.

NASA, ESA, CSA, STScI, Danny Milisavljevic (Purdue University), Ilse De Looze (UGent), Tea Temim (Princeton University)

A mysterious star from outside the Milky Way has somehow ended up near our galaxy's supermassive black hole

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A picture shows a star near the region where the Sagittarius A* black hole should be. The picture looks like yellow blobs on a dark background, two circles highlight the location of the star and the black hole.
A star called S0-6 (circled in blue), was found near the supermassive black hole Sagittarius A* (Sgr A*, circled in green) at the center of the Milky Way.

Miyagi University of Education/ NAOJ

NASA found a stray, space-grown tomato that went missing for 8 months, clearing the astronaut they all thought ate it

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image of astronaut with tomatoes on space station
NASA astronaut Frank Rubio with tomatoes growing on the International Space Station.

Koichi Wakata/Japan Aerospace Exploration Agency

Betelgeuse, one of the brightest stars in the sky, will almost disappear next week. Here's how to see it.

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A picture of Betelgeuse taken by the Hubble telescope shows up as a blob of orange matter on a black background
A picture of Betelgeuse taken by the Hubble telescope.

Andrea Dupree (Harvard-Smithsonian CfA), Ronald Gilliland (STScI),NASA and ESA

Rolls-Royce unveils a concept nuclear reactor that could one day power a colony on the moon

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A concept model of a micro nuclear reactor aimed to be sent on the moon is shown here at the UK Space Conference in Belfast.
Rolls-Royce's micro nuclear reactor concept is shown here at the 2023 UK Space Conference in Belfast, UK.

Rolls-Royce Novel Nuclear

It looks like Elon Musk's SpaceX is now worth $175 billion – that's more than Disney or Comcast

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SpaceX's huge Super Heavy-Starship
SpaceX's huge Super Heavy-Starship.

Timothy Clary/AFP/Getty Images

A rogue star could save Earth from extinction in a billion years by knocking it out past Pluto

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An artist's impression shows the solar system seen from the Earth
An artist's impression of Earth's orbit around the sun.

adventtr/Getty Images

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