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ESA

In, Through, and Beyond Saturn’s Rings

Four moons are visible on the featured image -- can you find them all? First -- and farthest in the background -- is Titan, the largest moon of Saturn and one of the larger moons in the Solar System. The dark feature across the top of... Continue Reading →

Getting CubeSats moving

ESA’s M-Argo mission will be the first CubeSat to traverse interplanetary space under its own power. Due to launch in 2024-5, the suitcase-sized spacecraft will travel to a near-Earth asteroid, up to 150 million km away. CubeSats are small, cheap satellites assembled... Continue Reading →

Veil Nebula: Wisps of an Exploded Star

Wisps like this are all that remain visible of a Milky Way star. About 7,000 years ago that star exploded in a supernova leaving the Veil Nebula. At the time, the expanding cloud was likely as bright as a crescent Moon, remaining visible for weeks to... Continue Reading →

ESA and UNOOSA illustrate space debris problem

Space debris is an issue of global concern that threatens our continued use of near-Earth space for the benefit of humankind. To raise awareness about this growing problem, ESA and the United Nations Office for Outer Space Affairs (UNOOSA) have created a series... Continue Reading →

Happy New Year on Mars

Five, four, three, two, one…. FIREWORKS! The countdown to a new year is in many ways a defining moment for our lives on Earth. Our age, our seasons, filing our taxes… – all depend on the duration of Earth’s orbit... Continue Reading →

A-68A iceberg thinning at 2.5 cm per day

Latest images reveal that the A-68A iceberg has shattered into multiple pieces, with two large fragments of ice breaking off from the main berg and floating away in the open ocean. Scientists using satellite data have not only been monitoring... Continue Reading →

Solar Orbiter’s first views of the Sun

This animation shows a series of views of the Sun captured with the Extreme Ultraviolet Imager (EUI) on ESA’s Solar Orbiter on 30 May 2020. They show the Sun’s appearance at a wavelength of 17 nanometers, which is in the... Continue Reading →

NGC 346: Star Forming Cluster in the SMC

Are stars still forming in the Milky Way's satellite galaxies? Found among the Small Magellanic Cloud's (SMC's) clusters and nebulas, NGC 346 is a star forming region about 200 light-years across, pictured here in the center of a Hubble Space Telescope image. A satellite galaxy of the Milky... Continue Reading →

First results from Cheops: ESA’s exoplanet observer reveals extreme alien world

ESA’s new exoplanet mission, Cheops, has found a nearby planetary system to contain one of the hottest and most extreme extra-solar planets known to date: WASP-189 b. The finding, the very first from the mission, demonstrates Cheops’ unique ability to... Continue Reading →

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