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The baffling and strange behaviors of black holes have become somewhat less mysterious, with new observations from two NASA missions.

Human spaceflight and operations image of the week: All Hallows’ Eve celebrates the cycle of destruction and rebirth, which our Cluster mission knows well

Two space telescopes caught a supermassive black hole in the midst of a giant eruption of X-ray light, helping astronomers address an ongoing puzzle: How do supermassive black holes flare?

Understanding why Mars is smaller than expected has frustrated scientists’ modeling efforts for decades.

An underwater robot initially built to help astronauts train for life in weightlessness is now being tested in the Mediterranean Sea. One day, robots like this may carry out sophisticated missions on our ocean floors, from finding lost air…

Researchers used cutting-edge technology to analyze bacteria present on the International Space Station and compare it to controlled clean rooms on Earth.

NASA’s Dawn spacecraft fired up its ion engine on Friday, Oct. 23, to begin its journey toward its fourth and final science orbit at dwarf planet Ceres.

Facts to help you understand what Cassini’s upcoming Enceladus flyby is all about.

Space Science Image of the Week: An intense burst of charged particles from the Sun created this eerie celestial display, captured in the skies above Norway

Catalina Sky Survey observations allowed scientists to spot the object, which looks more like space junk than a natural body.

Some of these galaxies formed just 600 million years after the Big Bang and are fainter than any other galaxy yet uncovered by Hubble.

The International Charter Space and Major Disasters celebrates 15 years of free access to the best-available satellite images

A new study describes polymers that could potentially increase the safety of aviation fuel, both during transportation and in the event of a collision.

Displaying the essential role satellites play in monitoring our changing world, the Climate Cube on the Champs-Elysées in Paris was inaugurated in the presence of ESA’s Director General Jan Woerner

Our week through the lens: 19-23 October 2015

Pluto’s moon Kerberos appears to be smaller than scientists expected and has a highly reflective surface, which suggests it’s coated with relatively clean water ice.

A rare reentry of a suspected rocket body from a very high orbit next month offers an excellent opportunity to gather data to improve our knowledge of how objects interact with Earth’s atmosphere.

NASA, through JPL, has issued a call to American industry for innovative ideas involving the Asteroid Redirect Robotic Mission.

NASA’s Cassini spacecraft will sample an extraterrestrial ocean next week when it flies directly through a plume of icy spray from Enceladus. A news telecon on Monday, Oct. 26, will preview the event.

Join us Friday, 23 October, at 10:00 CEST for the ‘Earth from Space’ video programme. This week features a Sentinel-2A image of Mexico City

The two stars in the extreme system VFTS 352 could be heading for a dramatic end, during which the two stars either coalesce to create a single giant star or form a binary black hole.

Astronomers have spotted a large rocky object disintegrating in its death spiral around a distant white dwarf star.

Technology image of the week: the glacier topping Africa’s Mount Kilimanjaro, imaged by Proba-V minisatellite

Starting with 515 ideas from 40 countries in this year’s European Satellite Navigation Competition, 37 winners were announced in Berlin

Thick smoke from the worst forest fires in nearly two decades blankets the island of Borneo in an Oct. 14 satellite image from NASA’s MISR instrument.

NASA scientists are tracking the upcoming Halloween flyby of an asteroid with optical observatories and radar capabilities of the Deep Space Network at Goldstone, California.

A tiny, rocky object is likely being torn apart as it spirals around a white dwarf star.

Oxia Planum has been recommended as the primary candidate for the landing site of the ExoMars 2018 mission.

Scientists used a giant particle detector at the South Pole to test whether the highest-energy neutrinos violate Einstein’s relativity theory by traveling faster than light.

These stars are pulsating stars, some of which show signatures attributed to a second type of pulsations.

Human spaceflight and operations image of the week: Scanning knees to reveal cartilage health in space and on Earth

A new NASA-led analysis of a moderate earthquake that shook Greater Los Angeles in 2014 offers new insights into the potential for future earthquakes in the region.

We’re proud to have passed a big milestone on our YouTube channel – thanks for watching!

The Climate Cube sitting on the Champs-Elysées focuses on how vital satellites are for understanding climate change, and how space is playing a major role in climate research and climate change mitigation

Data confirm that the local interstellar flow of helium atoms is significantly hotter than believed previously and provide insight into the direction the heliosphere is moving, as well as how fast it is traveling.

When our solar system was born 4.6 billion years ago, only eight percent of the potentially habitable planets that will ever form in the universe existed.

NASA satellite observations are giving scientists a comprehensive suite of tools to analyze the evolving El Niño and its global impacts as never before.

JPL’s education office has relaunched its website with new capabilities and offerings for formal and informal educators, K-12 students and aspiring JPL interns and fellows.

Space Science Image of the Week: Saturn’s moon Dione, viewed from the Cassini orbiter, crossing the face of its parent planet

25 years ago, the Ulysses spacecraft was launched into space and now, for the first time, its complete set of measurements of interstellar dust has been analyzed.

Zircons are used to date some of the earliest and most dramatic cataclysms of the solar system, but a study of zircons from a gigantic meteorite impact in South Africa casts doubt on the methods used to date lunar impacts.

New Hubble Jupiter views are helping scientists monitor the giant planet and prepare for NASA’s Juno mission, which will arrive there next year.

Our week through the lens: 12-16 October 2015

The formation, known as Mafic Mound, stands in the middle of a giant impact crater known as the South Pole-Aitken Basin.

The Cassini spacecraft has begun returning its best-ever views of the northern extremes of Saturn’s icy ocean-bearing moon.

ESA’s first technology-testing CubeSat, released last week from the International Space Station, is in good health and is set to start work on its six-month mission.

NASA’s Cassini spacecraft has begun returning its best-ever views of the northern extremes of Saturn’s icy, ocean-bearing moon Enceladus.

Join us Friday, 16 October, at 10:00 CEST for the ‘Earth from Space’ video programme. This week features a Sentinel-2A image of the Red Sea

Before the latest satellite for Copernicus is packed up and shipped to the Plesetsk cosmodrome in Russia for launch at the end of the year, the media and specialists were given the chance to see this next-generation mission centre-stage in…

For a piloted mission to Mars, fueling up on the Moon could streamline cargo by 68 percent.

Experiments suggest the surface of Ceres could consist largely of a mish-mash of meteoritic material collected over billions of years of bombardment.

Technology image of the week: prototype rovers and landers in ESA’s test environment ‘Mars Yard’

Catastrophic flooding triggered by ice melting from the heat of volcanic activity is thought to be responsible for the chaotic scenery depicted in this region of the Mangala Valles channel network.

Access our top news stories, videos and images, as well as news in your language, via our new mobile ESA website

Looking into Jupiter’s turbulent atmosphere and its famous Great Red Spot with the Hubble telescope

A Berkeley investigation found astronomer Geoff Marcy to have sexually harassed students over the course of a decade or more.