Satellite navigation is headed closer to users. ESA’s Navigation Directorate is planning an in-orbit demonstration with new navigation satellites that will orbit just a few hundred kilometres up in space, supplementing Europe’s 23 222-km-distant Galileo satellites. Operating added-value signals, these novel so-called ‘LEO-PNT’ satellites will investigate a new multi-layer satnav system-of-systems approach to deliver seamless Positioning, Navigation and Timing services that are much more accurate, robust and available everywhere.
Space News & Blog Articles
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Jupiter's moons: Facts about the many moons of the Jovian system
Explore Jupiter's 57 official moons including the infamous Galilean satellites and the largest moon in the solar system, Ganymede.
Predator movies in order: chronological and release
Watch all the Predator movies in order, both chronological and release. From Predator to Prey, and including the Alien vs. Predator crossovers.
China rolls out rocket to launch 3rd and final space station module (photos)
A Long March 5B heavy-lift rocket rolled out to the pad at Wenchang spaceport on Hainan island early Tuesday (Oct. 25) ahead of a launch expected on or around Oct. 31.
A new composite image of Saturn show its rings in unprecedented detail
A newly processed image, comprising 41 observations by NASA's retired Cassini mission, provides insights into the origins of Saturn's rings.
The 2022 Orionid meteor shower put on a show for skywatchers around the world (gallery)
The Orionid meteor shower lit up the skies around the world in 2022, and luckily many of our readers were able to catch wonderful images of the "shooting stars."
Opportunity Mars rover leader on 'Good Night Oppy' film, giving up Saturn
Steve Squyres, the principal investigator of the Opportunity mission, could have switched to Saturn. But learning about water on Mars kept him going on one mission for 30 years.
Craters and cracks on Mars
This complex region of craters and fractures in the Terra Sirenum region highlights the varied history of Mars. The image was taken by ESA’s Mars Express on 5 April 2022.
Proba-2 sees two partial eclipses
Video: 00:00:23
ESA’s Proba-2 captured two partial solar eclipses on 25 October 2022.
Lucy Took This Picture of Earth as it was Making its Gravity Assist Maneuver
We may take it for granted, but every day we receive picture postcards from the robotic travelers we have sent out to explore our Solar System. Usually, we get to see faraway planets, moons, asteroids, or comets. But sometimes we get to see ourselves.
Space station instrument spots methane 'super-emitters' on Earth
A powerful eye in the sky is helping scientists spy "super-emitters" of methane, a greenhouse gas about 80 times more potent than carbon dioxide.
Hubble Looks at Newly Forming Stars in a Stellar Nursery
When we look at images of star birth regions, they look both placid and active at the same time. That’s nowhere more true than in a stellar nursery associated with a so-called “Herbig-Haro” object. A recent image from Hubble Space Telescope zeroed in on two called “HH 1” and “HH 2”. It looked at the turbulence associated with a nearby newborn star system.
Samples Returned From Mars Will be Protected by a Micrometeorite Shield
In a few years, NASA and the ESA will conduct the long-awaited Mars Sample Return (MSR) mission. This mission will consist of a lander that will pick up the samples, an ascent vehicle that will send them to orbit, an orbiter that will return them to Earth, and an entry vehicle that will send them to the surface. This will be the first time samples obtained directly from Mars will be returned to Earth for analysis. The research this will enable is expected to yield new insights into the history of Mars and how it evolved to become what we see today.
Maybe We Don’t See Aliens Because Nobody Wants to Come Here
The Fermi Paradox won’t go away. It’s one of our most compelling thought experiments, and generations of scientists keep wrestling with it. The paradox pits high estimates for the number of civilizations in the galaxy against the fact that we don’t see any of those civs. It says that if rapidly expanding civilizations exist in the Milky Way, one should have arrived here in our Solar System. The fact that none have implies that none exist.
See the moon's shadow crawl eerily across Earth in last solar eclipse of 2022 (satellite video)
The partial solar eclipse today (Oct. 25) generated some haunting space footage of the shadow of our moon passing over our Earth, as seen from satellites.
Webb and Hubble Peer Into the Wreckage of a Galactic Collision
Earlier this month we asked, what could be better than a pair of galaxies observed by a pair of iconic space telescopes. Now, there is an exciting new answer. Even better than a pair of galaxies is a pair of galaxies that are colliding!
'Ant-Man and The Wasp: Quantumania' trailer dives into the quantum realm
Marvel Studios released a new full trailer for "Ant-Man and The Wasp: Quantumania."
David Tennant surprises 'Doctor Who' fans for 2023's big 60th anniversary party
"Doctor Who" teases David Tennant's return for 2023's special 60th anniversary episodes.
James Webb Space Telescope reveals hidden star formation in pair of colliding galaxies (photo)
The James Webb Space Telescope photographed a collision of two galaxies that's sparking a flurry of star formation invisible to other telescopes.
Live coverage: SpaceX preps for first Falcon Heavy launch in three years
Live coverage of preparations for launch of SpaceX’s Falcon Heavy rocket on the U.S. Space Force’s USSF-44 mission. Text updates will appear automatically below. Follow us on Twitter.
Lightest Neutron Star Ever? Maybe, Maybe Not
A team of astronomers claims to have measured the lightest neutron star, but others say extraordinary claims require extraordinary evidence.
