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The earlier episode at Jezero Crater formed clay minerals, and then later surface water activity transported them.

In a new report, scientists show that using a particular class of type Ia supernovae that occur near youthful stars can improve measurements of cosmic distances.

Europe now has eight navigation satellites in orbit after the launch of Galileos 7 & 8

Replay of the separation of Galileo satellites 7 and 8 from their Fregat upper stage

The EU’s Galileo satellite navigation system now has eight satellites in orbit following the launch of the latest pair. 

Replay of the launch transmission of Soyuz ST-B carrying Galileo satellites 7 and 8, 27 March at 22:46 GMT, from Europe’s Spaceport

Liftoff of Soyuz ST-B carrying Galileo satellites 7 and 8, at 21:46 GMT, from Europe’s Spaceport in French Guiana

The team operating the Mars Rover Opportunity learned that it experienced a brief amnesia event related to its flash memory, the first since a reformatting a week earlier.

The team operating the Mars Rover Opportunity learned that it experienced a brief amnesia event related to its flash memory, the first since a reformatting a week earlier.

The rotating “golden lasso” reflector antenna on NASA’s new soil moisture mapping mission is now fully spun up to its design rate in preparation for science operations.

A series of observations from Mars orbit show how dark blast zones that were created during the August 2012 landing of NASA’s Curiosity rover have faded inconsistently.

Our week through the lens: 23-27 March 2015

Check out some of the scientific results in these colourful images from this week’s Fringe Workshop on detecting surface movements with radar satellites

ESA’s recovered IXV spaceplane arrived at the Port of Livorno in Italy yesterday and is set to be taken to Turin for final analysis.

It is most likely to be a young star with a massive core that is still accreting material.

Dark matter does not slow down when colliding with each other, which means that it interacts with itself even less than previously thought.

Millions of images of celestial objects, including asteroids, observed by NASA’s NEOWISE spacecraft now are available online to the public.

Tune in to a live, interactive broadcast from JPL where a test vehicle for NASA’s Low-Density Supersonic Decelerator project is being prepped for its next test flight in June.

A new report identifies top-of-the-line tools for studying the fabric of space.

NASA Wednesday announced more details in its plan for its Asteroid Redirect Mission (ARM), which in the mid-2020s will test a number of new capabilities needed for future human expeditions to deep space, including to Mars.

Watch the launch of Europe’s next two Galileo satellites on Friday 27 March. Streaming starts at 21:24 GMT (22:24 CET)

It takes a lot of ingenuity – not to mention a massive quantity of sheer force – to get satellites into orbit. Now space engineers are applying comparable ingenuity to the challenge of getting their missions out of there, too.

Join us Friday, 27 March, at 10:00 CET for the ‘Earth from Space’ video programme. This week features a multitemporal Sentinel-1A image of the Aral Sea

The dwarf galaxy is the least abundant in metals in the nearby universe and one of the most akin to the primeval galaxies.

The finding validates a long-suspected feedback mechanism enabling a supermassive black hole to influence the evolution of its host galaxy.

Human spaceflight and operations image of the week: Spacecraft attached to the International Space Station at sunset

Astronomers using ESA’s Herschel space observatory have found that the winds blowing from a huge black hole are sweeping away its host galaxy’s reservoir of raw star-building material.

Sentinel-1A captured the fast-moving Pine Island glacier, which flowed about 100 m in less than two weeks

Technology image of the week: BBC Stargazing Live host Dallas Campbell atop ESA’s Electrodynamic Shaker

A look back at SpaceUp Cologne at ESA’s astronaut centre, 21-22 March

The new work addresses why the terrestrial planets in our solar system have such relatively low masses compared to the exoplanets orbiting other Sun-like stars.

Scientists have long thought that nitrates would be produced on the Red Planet from the energy released in meteorite impacts, and the amounts they found agree with estimates from this process.

Thousands of engineers have worked on the seventh and eighth navigation satellites of Europe’s Galileo constellation in recent years, but last Friday marked the very last time the spacecraft were glimpsed by human eyes. 

One of the four Cluster satellites has shifted its orbit to ensure a safe reentry when the time comes, as well as providing a rare opportunity to study how a satellite’s exhaust plume interacts with the solar wind.

NASA’s Mars Exploration Rover Opportunity completed its first Mars marathon Tuesday — 26.219 miles (42.195 kilometers) – with a finish time of roughly 11 years and two months.

A team using the Sample Analysis at Mars (SAM) instrument suite aboard NASA’s Curiosity rover has made the first detection of nitrogen on the surface of Mars from release during heating of Martian sediments.

NASA’s new soil moisture mapping mission has moved a step closer to starting science operations following the partial spin-up of its “golden lasso” reflector antenna.

Observations reveal that a particular supernova produced a cloud that contains enough dust to make 7,000 Earths.

The observed outburst reveals a sudden accumulation of gas and dust.

A sudden eruption around an exceptionally young star surprises astronomers.

Operators of NASA’s Opportunity Mars rover have reformatted the rover’s onboard flash memory so the team can resume storing data overnight on the rover.

The team in charge of NASA’s Kepler mission will receive the Smithsonian National Air and Space Museum’s highest group honor at a ceremony in Washington on March 25.

Scientists are making advances in the use of satellite radar data – such as those from the Sentinel-1 mission – to monitor Earth’s changing surface.

Sentinel-1A shows that the ground is rising by 0.5 cm per month in Italy’s Phlegraean Fields – or Campi Flegrei – near Naples

Space Science Image of the Week: Some galaxies take on more familiar forms than others, as shown in this aquatic-themed Hubble image of merging galaxy pair Arp 142

Astronomers using NASA’s Chandra X-ray Observatory are studying nova GK Persei to provide clues to the dynamics of much larger stellar explosions.

The star, which astronomers saw appear in the sky in 1670, was not a nova, but a spectacular collision between two stars, more brilliant than a nova, but less so than a supernova.

One of humanity’s oldest technologies, the humble fishing net, may yet find a new role in space: bringing down dead satellites. 

As today’s partial solar eclipse crossed Europe, it was also visible from space. ESA’s Proba-2 captured a near-total eclipse from orbit, at the same time as its sister minisatellite Proba-V peered down to snap the shadow of the eclipse on Earth.

Our week through the lens: 16-20 March 2015

Image and video gallery of the solar eclipse as seen by astronaut Samantha Cristoforetti, ESA’s Proba-2 minisatelite and ESA sites around Europe

New Horizons’ flyby past Pluto and its largest moon, Charon, will transform them from poorly seen hazy bodies to tangible worlds with distinct features.

The instrument has just begun to scour the sky for messages from other worlds.

Satellite observations provide a new and more accurate way to assess where underground water in northern Italy is most at risk from pollutants.

This week’s spectacular glowing auroras in the night sky further south than usual highlighted the effect that ‘space weather’ can have on Earth.

A strong solar flare was detected on the Sun last Sunday, an event generally associated with …

Join us Friday, 20 March, at 10:00 CET for the ‘Earth from Space’ video programme. This week features the Mongolian capital, Ulan Bator

Technology image of the week: Moonwalker Buzz Aldrin, on screen, meets ESA’s telerobotic arm during BBC Stargazing Live rehearsal

The MESSENGER team initiated the “hover” observation campaign, which was designed to gather data from the planet at ultra-low altitudes until the last possible moment.

A team of astronomers and geologists have produced a new map of the Moon’s most unusual volcano showing that its explosive eruption spread debris over an area much greater than previously thought.

The ADAPT test system can help a spacecraft divert its course and make a smooth, pinpoint landing. Two technology demonstration test flights were completed in California in 2014.

ESA’s Redu Centre was honoured with a visit from His Majesty King Philippe of Belgium on Tuesday 17 March

ESA’s Redu Centre was honoured with a visit from His Majesty King Philippe of Belgium on Tuesday 17 March

For participants in the Mars imaging campaign: how to command a camera orbiting the Red Planet. Join our live #ESAHangout, 13:30 GMT / 14:30 CET, 19 March

For participants in the Mars imaging campaign: how to command a camera orbiting the Red Planet. Join our live #ESAHangout, 13:30 GMT / 14:30 CET, 19 March

On 18 March 1965 Russian cosmonaut Alexei Leonov became the first person to perform a spacewalk. Celebrate 50 years of spacewalks with this multimedia gallery

On 18 March 1965 Russian cosmonaut Alexei Leonov became the first person to perform a spacewalk. Celebrate 50 years of spacewalks with this multimedia gallery

Instead of core formation occurring by iron sinking down to the growing Earth’s core in large blobs, that iron was vaporized, spread out in a plume over the surface of Earth and rained out as small droplets.

Although the source and composition of the dust are unknown, there is no hazard to MAVEN and other spacecraft orbiting Mars.

The seventh and eighth Galileo satellites, set for launch together in nine days’ time, have been fitted together onto the dispenser that will carry them during their flight to orbit.

Human spaceflight and operations image of the week: Celebrating 12 years at New Norcia

This database gives us the first glimpse at what diverse worlds out there could look like.