The European Space Agency's ClearSpace-1 satellite was zeroing in on the spent payload adaptor from a 2013 rocket launch. Its task would be to extend arms, grab the chunk of debris, hug it tightly, and then pull it back into the Earth's atmosphere, de-orbiting and removing it from low-Earth orbit. On August 10th, mission controllers detected multiple pieces of space debris near its target - debris that was probably dislodged from it in the recent past. They're now scrutinizing the situation to plan their next step in the mission.

A new study considers how future astrobiology studies could search for life "as we don't know it" on exoplanets.

We recently got a new image of the famous Ring Nebula from JWST using its NIRCam instrument. This week we got an update taken with MIRI. The Ring Nebula is a perfect example of a planetary nebula, where a dying star throws its outer layers off into space. The new images reveal 20,000 individual clumps of dense molecular gas, each as massive as Earth. There is a narrow band of hydrocarbons in the ring, which surprised astronomers with its presence. The Ring Nebula is only 2,200 light-years from Earth, which makes it the ideal object to study, giving us clues about the future of our own Sun.

Most North America gets to see the Moon blot out Antares Thursday night.

On Saturday, Aug. 19th, Russia's Luna-25 spacecraft suffered an engine malfunction and crashed its lunar lander on the Moon's surface.

Universe Today sat down with NASA technologist, engineer, and author Les Johnson as he talked about some of the highlights from the 8th Interstellar Symposium.

Almost all the galaxies in the Universe are speeding away from us because of the Big Bang and the acceleration of dark energy. One technique to measure this expansion is redshift, seeing how light is reddened over time as its wavelength stretches out. But every observation astronomers can make is a snapshot, measuring the redshift now. But an intriguing idea is to measure how the redshift changes over time as a galaxy's movement accelerates. It's called "redshift drift" and requires an exact series of measurements over time.

A new study shows how hyperspectral imaging and AI could help in the study of Unidentified Aerial Phenomena (UAP).

Stars begin as giant clouds of gas and dust that pull together through mutual gravity into a dense protostar. At some point, the intense pressure and temperature cause fusion in the star's core, where lighter elements, like hydrogen, are fused into heavier elements, like helium. When the Sun runs out of one type of fuel, it shifts to the next type and begins the process again, with the heaviest stars reaching iron. A new simulation shows a portion of the interior of a star as it completes one of these stellar phases.

New Comet P1 Nishimura graces the August dawn sky...but how bright will it get?

An image taken by the HiRISE camera aboard NASA's MRO shows evidence of past glaciers away from Mars' polar regions.

The Milky Way and Andromeda are set to collide in a few billion years but are still over two million light-years apart. Cosmologically, this is right next door, but it could still be far enough to measure the effect of dark energy, which is pushing back on the galaxies coming together. According to a new study, the movement of the two galaxies towards each other could give an upper limit on the cosmological constant model of dark energy. Other merging pairs of galaxies could provide more data and help refine the measurements.