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Gravitational waves are ripples in spacetime produced by the acceleration of very massive objects, such as black holes coming together and merging. 

Different objects in space produce gravitational waves of different timescales, ranging from milliseconds to billions of years. 

Some of these waves can only be observed from space.

This is the goal of ESA’s future mission LISA, which will be the first space-based gravitational wave observatory.

LISA will study gravitational waves that are produced by merging stellar mass black holes, supermassive black holes and white dwarfs. It will also pick up the waves produced by compact objects, like neutron stars

NASA has tested the functions of Lucy, the agency’s first spacecraft to study Jupiter’s Trojan asteroids, filled it with fuel, and is preparing to pack it into a capsule for launch Saturday, Oct. 16.

People with sight loss and sensory disabilities often experience problems seeking information online. ESA is bringing the Moon closer to them with a more accessible series of infographics.

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ESA astronaut Thomas Pesquet is on his second mission to the International Space Station called Alpha. In this video Thomas explains the process behind relocating the SpaceX Crew Dragon Endeavour to another port on the Space Station.

NASA astronauts Megan McArthur, Shane Kimbrough, JAXA astronaut Aki Hoshide and Thomas flew to the International Space Station in Crew Dragon Endeavour as part of Crew-2. On 21 July the four astronauts got into their spacesuits and took their Dragon spacecraft for a spin to undock from the forward port of Harmony and redocked with the same module on another port.

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Timelapse video made during ESA astronaut Thomas Pesquet’s second mission to the International Space Station, “Alpha”. The camera is setup to take pictures at intervals of two a second, and the pictures are then edited into this video that plays at 25 pictures a second. The video is around 12 times faster than real speed.

Thomas shared this video on social media with the caption:

“Timelapse Tuesday: Approaching Europe at night, the Madeira islands seem to act as beacons that Portugal and Spain are on the horizon under the green hue of our atmosphere. The voyage continues over a

When tested in space-like conditions, the instrument on ESA’s Euclid space telescope set to measure the velocities of fast-receding galaxies abruptly stopped operating. Blindsided, the mission team feared it might take weeks or even months of extra time to uncover the reason why. Then a newly-convened ESA Tiger Team came to their assistance, pinpointing the cause and keeping Euclid on its set launch schedule.

ESA’s Euclid mission has reached a new milestone in its development with successful testing of the telescope and instruments showing that it can operate and achieve the required performance in the extreme environment of space.

Beijing (XNA) Sep 29, 2021
China launched a Kuaizhou 1A carrier rocket to place a high-resolution Earth-observation satellite in space on Monday afternoon, according to China Aerospace Science and Industry Corporation. The State-owned space contractor said in a statement the solid-propellant rocket blasted off at 2:19 pm at the Jiuquan Satellite Launch Center in northwestern China and soon deployed the satellite - J