The Orion Integrity spacecraft and the Moon in the background (Image NASA)

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NASA’s Orion Integrity spacecraft has completed a record-breaking journey around the Moon as part of the Artemis II mission. It didn’t enter lunar orbit, but “merely” circled it to boldly go where no one has gone before, approximately 406,771 kilometers (252,756 miles) from Earth, breaking the record for the maximum distance for a human spaceflight that was held by Apollo 13. That 1970 mission reminds us of the risks astronauts face in space, and after completing that feat, astronauts Christina Koch, Victor Glover, Reid Wiseman, and Jeremy Hansen set course for their return to Earth, scheduled for Friday, April 10.

The Space Launch System lifts off with the Orion Integrity spacecraft (NASA Photo/Bill Ingalls)

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It was afternoon in the USA when NASA’s Orion spacecraft separated from the last stage, called the ICPS (Interim Cryogenic Propulsion Stage), of the Space Launch System (SLS), which blasted off almost two hours earlier from the Kennedy Space Center. The Orion entered the trajectory that will take it around the Moon to carry out its mission, which will last about 10 days. This is the second launch for the SLS and for the Orion in its full configuration. The Artemis II mission is important because it’s the first of this program to have a crew aboard.

Artist's concept of the Moon base (Image NASA)

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Yesterday, NASA held its Ignition event, featuring a series of announcements regarding its space program. Announcements were expected from new Administrator Jared Isaacman and other agency managers in connection with the Artemis program, to clarify the agency’s intentions regarding the return of astronauts to the Moon. From this perspective, the intention that was announced is to accelerate the pace of missions, also in order to build a permanent base on the Moon. In this new vision, the Lunar Gateway project might be abandoned, although officially, it remains relevant in the long term.

The program for missions to Mars was also part of the event. In this case, the Space Reactor-1 Freedom (SR-1 Freedom) mission was introduced, to be conducted using a spacecraft that will use nuclear electric propulsion, scheduled for launch in December 2028. A fleet of Skyfall helicopters is programmed to be on board, intended to continue exploration of the red planet.

The samples collected by the Hayabusa 2 space probe on two different occasions from the first and second selected sites on asteroid Ryugu.

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An article published in the journal “Nature Astronomy” reports the discovery of the five nucleobases that form DNA and RNA—adenine, guanine, cytosine, thymine, and uracil—in samples brought back to Earth from asteroid Ryugu. A team of researchers analyzed two of the samples taken by JAXA’s Hayabusa 2 space probe during its mission. The five nucleobases were found in both samples. Just over a year ago, the detection of the five nucleobases in samples brought back from the asteroid Bennu by NASA’s OSIRIS-REx space probe was announced. This provides further confirmation of the presence of life’s building blocks on asteroids, and it’s possible that they seeded the primordial Earth.

A 3D map of the local universe with the various galaxy superclusters. On the left is the Vela Supercluster

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An article submitted for publication in the journal “Astronomy & Astrophysics” reports the results of an astronomical study that used a hybrid technique to examine the Vela Supercluster. A team of researchers combined redshifts with the distances and peculiar velocities of galaxies within the Vela Supercluster to obtain a complete portrait of it, a result that was previously impossible due to its location, hidden by the Milky Way’s so-called zone of avoidance.

Key information was obtained using the SALT optical telescope and the MeerKAT radio telescope, both in South Africa. Given the importance of this nation in this research, the authors used the nickname Vela-Banzi, adding a term in Xhosa, a Bantu language, which means “revealing widely.”