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Return to Earth for Expedition 74 Crew of the ISS

NASA astronaut Chris Williams and Russian cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev safely landed in Kazakhstan on July 26 after 241 days aboard the ISS.

Return to Earth for Expedition 74 Crew of the ISS

The crew of Expedition 74, comprising NASA astronaut Chris Williams and Russian cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev, successfully landed in the plains of Kazakhstan on July 26 at 12:27 PM Paris time. Their return marked the conclusion of a remarkable 241 days aboard the International Space Station (ISS).

After an extensive eight-month mission that included 3,856 orbits around Earth, the team touched down safely on Sunday, July 26. This mission was particularly significant as it was Chris Williams’ and Sergei Mikaev’s first experience in orbit, while Sergey Kud-Sverchkov had previously completed one spaceflight.

The image above captures the critical moment when the Soyuz capsule's retro rockets ignited just 1.5 meters above the ground, effectively slowing its descent before landing. Typically, a Soyuz capsule lands at a speed of approximately 10 km/h.

Noteworthy Discoveries in Astronomy

New Planetary Nebula Discovered by Amateur Astronomers

In a remarkable achievement, a group of amateur astronomers has unveiled a new planetary nebula, named FACT 1. This nebula, which measures about one-third the size of a full moon, emits a faint glow in the constellation of Auriga. The discovery resulted from an impressive cumulative effort of 310 hours of exposure time.

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The 23/07/2026 by David Fossé

](https://www.cieletespace.fr/article/une-nouvelle-nebuleuse-planetaire-decouverte-par-des-amateurs)

Third Planet Photographed Around Beta Pictoris

Astronomers have identified a third planet orbiting the star Beta Pictoris, a system known for its youthful planetary formation since the 1980s. This newly discovered planet, which is less massive and situated further out, had remained hidden within the data for over a decade.

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The 15/07/2026 by Philippe Henarejos

](https://www.cieletespace.fr/article/une-troisieme-planete-photographiee-autour-de-beta-pictoris)

50 Years Since Viking 1 Landed on Mars: Witnesses Reflect

On July 20, 1976, the Viking 1 probe made history by landing on Mars. Fifty years later, witnesses of this groundbreaking event share their memories of the anxiety and excitement experienced during the critical twenty minutes between landing and the confirmation of its success.

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The 17/07/2026 by Louis Konlog

](https://www.cieletespace.fr/article/il-y-a-50-ans-viking-1-se-posait-sur-mars-les-temoins-du-premier-paysage-martien-racontent)