Astronomers Continue to Unravel the Mystery of the Universe’s Missing Matter
Astronomers using ESA’s XMM-Newton space observatory have probed the gas-filled haloes around galaxies in a quest to find ‘missing’ matter thought to reside there, but…
European Space Agency
Scientists Successfully Complete World-First Firing of Air-Breathing Electric Thruster
In a world-first, an ESA-led team has built and fired an electric thruster to ingest scarce air molecules from the top of the atmosphere for…
Astronomers Witness a Very Rare Event, The Birth of a Symbiotic X-Ray Binary
ESA’s Integral space observatory has witnessed a rare event: the moment that winds emitted by a swollen red giant star revived its slow-spinning companion, the…
Space Weather Satellite Set to Go Where No Mission Has Gone Before
Living near a star is risky business, and positioning a spacecraft near the Sun is a very good way to observe rapidly changing solar activity…
Scientists Measure Energy Transfer Within the Magnetosheath
For the first time, scientists have estimated how much energy is transferred from large to small scales within the magnetosheath, the boundary region between the…
Breathtaking Hubble Image of Spiral Galaxy NGC 7331
This NASA/ESA Hubble Space Telescope image shows a spiral galaxy known as NGC 7331. First spotted by the prolific galaxy hunter William Herschel in 1784,…
ESA and Russian Space Mission Steps Up the Search for Life on Mars
In 2013, the European Space Agency and Roscosmos — the Russian governmental body responsible for space research — agreed to cooperate on ExoMars, the first…
Miniature Satellites GomX-4B and GomX-4A Will Be Propelled By Butane
ESA’s next miniature satellite will be its first able to change orbit. Thanks to a compact thruster resembling a butane cigarette lighter, the cereal box-sized…
ESA and NASA Satellites Spot the Return of the Comet 96P
The European Space Agency and NASA mission SOHO — short for Solar and Heliospheric Observatory — got a visit from an old friend this week…
ESA’s Gaia Satellite Reveals the Rate of Stellar Encounters with the Sun
The movements of more than 300,000 stars surveyed by ESA’s Gaia satellite reveal that rare close encounters with our Sun might disturb the cloud of…
Kuiper Belt Object 2014 MU69 Just Got a Lot More Interesting
New Horizons’ next target just got a lot more interesting. Astronomers believe Kuiper Belt object 2014 MU69 may actually be two objects that are close…
SOHO Reveals Evidence of Seismic G-Mode Waves in Our Sun
Using data from the Solar and Heliospheric Observatory, or SOHO, astronomers have detected a type of wave called g-modes on the Sun. After four decades…
New Mysteries Surround Kuiper Belt Object 2014 MU69
The New Horizons Spacecraft won’t pass its next target until New Year’s Day 2019, but Kuiper Belt object 2014 MU69 is already revealing surprises. Scientists…
European Space Agency to Develop Gravitational Wave Space Mission
The European Space Agency (ESA) has selected the Laser Interferometer Space Antenna (LISA) for its third large-class mission in the agency’s Cosmic Vision science program….
Mars Express Provides a Window to a Watery Past on Mars
New composite images captured by ESA’s Mars Express offer a window into the watery past of the Red Planet. This 70 km-wide crater and its…
Astronomers Document Remarkable Changes on Comet 67P
The Rosetta mission has documented remarkable changes on the surface of Comet 67P, revealing growing fractures, collapsing cliffs, rolling boulders and moving material. Images returned…
First Images from ExoMars Mission
The above image is one of the first image pairs taken by the ExoMars high-resolution CaSSIS camera. ExoMars was launched on a Proton-M rocket from…
ESA’s Mars Express View Remnants of Mega-Flood on Mars
European Space Agency’s Mars Express has captured images of one of the largest outflow channel networks on Mars. The Kasei Valles channel system extends around…