Water has left its mark in a variety of ways in this martian scene captured by ESA’s Mars Express.

Inner-city deliveries in Austria may soon be powered by pollution-free fuel cell technology that is also being explored by ESA for satellites and robotic missions to Mars.

A new study finds that most asteroids and comets are destroyed in a drawn out, long hot fizzle, much farther from the Sun than previously thought.

The BOSS survey scanned the sky and measured the redshifts of more than 1 million galaxies. Now, an international team of astronomers has reproduced the observed galaxy clustering by generating thousands of simulated galaxy catalogs.

How ExoMars 2016 will be launched on its seven-month cruise to the Red Planet

Technology image of the week: a close-up glimpse of a microchip designed to provide high-frequency radar for future space missions

How ESA is preparing astronauts for missions to the Moon

From ESA’s control centre, watch the replay of the 16 February event to celebrate the launch of the first satellite for the Sentinel-3

The third ESA-developed satellite carrying four Earth-observing instruments was launched today, ready to provide a ‘bigger picture’ for Europe’s Copernicus environment programme.

Watch the replay of the Sentinel-3A launch on a Rockot from the Plesetsk Cosmodrome in Russia

The light detected from this jet was emitted when the universe was only 2.7 billion years old, a fifth of its present age.

For the first time, the two masses — a pair of identical gold-platinum cubes — in the heart of the LISA Pathfinder spacecraft are floating freely, linked only by laser beams.

ESA hopes its LISA Pathfinder mission will teach scientists how to observe the universe outside the electromagnetic spectrum.

The exoplanet 55 Cancri e has a dry atmosphere without any indications of water vapor.

ESA’s LISA Pathfinder has released both of its gold–platinum cubes, and will shortly begin its demanding science mission, placing these test masses in the most precise freefall ever obtained to demonstrate technologies for observing gravitational waves from space.

Discover how Sentinel-3 will observe our oceans, helping us better understand the overall health of our planet

What promises to be one of the biggest Earth observation conferences in the world has opened its doors to registration

During this time, more than two hundred research papers related directly or indirectly to the 19-meter-wide Chelyabinsk superbolide have been published.

Yesterday, a ‘team of teams’ working at ESA’s control centre conducted a final rehearsal for tomorrow’s launch of Sentinel-3A.

Space Science Image of the Week: ESA’s SMART-1 orbited the Moon for 21 months , and sent back many striking views of the lunar surface

Live from ESA’s control centre in Germany: follow the events leading up to the launch of Sentinel-3A. Streaming begins at 17:00 GMT (18:00 CET) on 16 February

A special terahertz camera developed by ESA has been used by a UK company to develop an advanced scanner to spot even objects well hidden under clothes

For Valentine’s Day, a story about “entangled” particles, sensitive to each other no matter how far apart they may be.

ESA inaugurated a new tracking dish in Australia yesterday, marking a significant step in the Agency’s worldwide satcom network.

With four days to liftoff, the next Sentinel satellite for Copernicus is now on the launch pad at the Plesetsk cosmodrome in northern Russia.

The rocket will be fuelled the day before the launch – set for 16 February at 17:57 GMT (18:57 CET).

Our week through the lens: 8-12 February 2016

This new video explains how the ESA-designed EGNOS satnav augmentation system is making European aircraft landings even safer

The Philae lander is facing conditions on Comet 67P from which it is unlikely to recover.

West Coast viewers can watch the Moon occult Aldebaran on February 15/16, but everyone can see our satellite posing with the Hyades Cluster.

The “Valentine Dome” is a gentle volcanic protrusion tucked against the western flank of Mare Serenitatis. It shows up only at the lowest of Sun angles, perfectly timed for viewing on the evening of Valentine’s Day (February 14).

A significant event happened at the Laser Interferometer Gravitational-wave Observatory on September 15 — a ripple in spacetime had occurred. But where?

The story of the Copernicus satellites, present and future

Silent since its last call to mothership Rosetta seven months ago, the Philae lander is facing conditions on Comet 67P/Churyumov–Gerasimenko from which it is unlikely to recover.

LIGO opens new window on the universe with observation of gravitational waves from colliding black holes.

New NASA satellite data have allowed researchers to identify and quantify, for the first time, how climate-driven increases of liquid water storage on land have affected sea level rise.

ESA is thrilled to learn that gravitational waves have been detected, and is looking forward to starting its mission to test technologies that could extend the study of these exotic waves to space.

Join us Friday, 12 February, at 10:00 CET for the ‘Earth from Space’ video programme. This week features a Sentinel-2A image of Madrid, Spain

Albert Einstein’s 1936 paper denouncing gravitational waves was rejected by the journal that just published proof of their existence.

Learn about gravitational waves in this interview with Joseph Taylor, who discovered gravitational radiation in 1978 and won physics’ top prize 15 years later.

Fourteen space travel posters of colorful, exotic cosmic settings are now available free for downloading and printing.

Tune into an announcement from the LIGO collaboration about gravitational waves on Thursday at 10:30 a.m. EST.

ASTRO-H is expected to provide breakthroughs in a wide variety of high-energy phenomena in the cosmos.

These basins could have been episodically covered, perhaps during hundreds of millions of years, by lava and water lakes that were discharged from subsurface pressurized sources.

Technology image of the week: ESA’s proposed Asteroid Impact Mission would put down a micro-lander on its target body

Adam Steltzner, a JPL engineer who helped pioneer the breakthrough technique for landing a one-ton rover on Mars, has been elected into the National Academy of Engineering.

Asteroid Day, a global movement to increase knowledge and awareness of asteroids, announced its plans for 2016 from a press conference hosted at ESA’s technical heart in the Netherlands and livestreamed around the world.

Human spaceflight and robotic exploration image of the week: investigating proxy atoms on the International Space Station in a discharge plasma tube

The discovery may help to explain the Great Attractor region, which appears to be drawing the Milky Way and hundreds of thousands of other galaxies towards it with a gravitational force equivalent to a million billion Suns.

Dwarf galaxies are considered building blocks of the giants, but the evidence for giants absorbing dwarfs has been largely circumstantial. Now we have caught a pair of galaxies in the act of a deadly embrace.

New, detailed maps of the world’s natural landscapes created using NASA satellite data could help scientists better predict the impacts of future climate change.

A NASA/Duke University study provides new evidence why global temperatures remain stable in the long run unless pushed by outside forces, such as increased greenhouse gases.

Antarctica is surrounded by huge ice shelves. New research, using ice velocity data from satellites such as ESA’s heritage Envisat, has revealed that there is a critical point where these shelves act as a safety band, holding back the ice that flows towards the sea. If lost, it could be the point of no return.

Watch a replay of the press conference announcing Asteroid Day 2016

Watch the live press conference unveiling Asteroid Day 2016’s events and partners from 1500 CET (1400 UTC) on Tuesday, 9 February

Space Science Image of the Week: Small moonlets within Saturn’s rings disrupt their surroundings and leave telltale trails, such as these spied by Cassini

Mitchell joined Apollo 14 commander Alan Shephard, Jr., in the lunar module Antares, which touched down February 5, 1971 in the Fra Mauro highlands.

ESA’s Sentinel-3 Mission Manager Susanne Mecklenburg and Mission Scientist Craig Donlon join the show to tell us more about the Sentinel-3A satellite and its mission

A start-up company from ESA’s business incubator in Flanders is helping to keep Belgian researchers safe in Antarctica

Moments after Sentinel-3A separates from its rocket, a team of European mission control specialists will assume control, shepherding the new spacecraft through its critical first days in space.

The 18th and final segment on James Webb Space Telescope’s primary mirror was installed on 3 February

Our week through the lens: 1-5 February 2016

The hills are likely miniature versions of the larger jumbled mountains on Sputnik Planum’s western border.