Reuters Science News Summary

Previously planned for late April, the Starliner mission is now slated to launch after a private astronaut mission scheduled for May "as teams assess readiness and complete verification work" for the spacecraft, NASA's space operations chief Kathy Lueders said on Twitter.

Following is a summary of current science news briefs.

Scientists explain alien comet 'Oumuamua's strange acceleration

The quirky comet 'Oumuamua, the first interstellar object found visiting our solar system, has been the subject of fascination since being spotted in 2017, including its curious acceleration as it hurtled away from the sun. Hypotheses were floated in light of its unexpected behavior, including fleeting speculation that it might actually have been an alien spacecraft. A new study has offered a more sober explanation - that 'Oumuamua's speed-up was due to the release of hydrogen gas as the comet warmed up in the sunlight.

NASA delays Boeing Starliner's debut crewed voyage

Boeing's first mission carrying astronauts to space aboard its Starliner capsule has been delayed until at least the summer, a NASA official said on Thursday, as people familiar with the matter said last-minute tests and technical debates nixed a plan for an April launch. Previously planned for late April, the Starliner mission is now slated to launch after a private astronaut mission scheduled for May "as teams assess readiness and complete verification work" for the spacecraft, NASA's space operations chief Kathy Lueders said on Twitter. She did not provide further details about reasons for the delay.

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