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The Andromeda Galaxy, also known as Messier 31 (or M31), is one of the most distant objects visible to unaided human eyes. This spiral galaxy, located 2.5 million light-years away from our sun, is considered to be a “twin sister” to our own galaxy in appearance. Look for it as a faint and elongated fuzzy…

A few months from now, the International Space Station (ISS) could be unoccupied for the first time in nearly two decades. Russia’s workhorse Soyuz rocket suffered a serious anomaly just minutes after launching two astronauts toward the ISS today (Oct. 11), forcing the spaceflyers’ crew craft to make an emergency landing in Kazakhstan. Those two explorers —…

All systems go for landing on Mars on Nov. 26, NASA personnel affiliated with the InSight mission confirmed during a pair of news conferences held today (Nov. 21). As of that news conference, the spacecraft had traveled about 295 million miles (475 million kilometers) of the 301 million miles (484 million km) that will make up its total…

NASA has set Jan. 7 as the date for the launch of the first commercial crew test flight, an uncrewed SpaceX Dragon spacecraft that will start a series of high-stakes missions over the next year. In a Nov. 21 statement, NASA said the Falcon 9 launch of the Crew Dragon spacecraft on a mission designated…