Beams of light > Spectrum of lights > Space Exploration
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After picking up faint signals from the earliest hydrogen gas ever detected, astronomers have found evidence of the very first stars in the Universe, according to a new study published in the journal Nature. The findings have also unexpectedly revealed potentially groundbreaking evidence regarding the nature and possible existence of the most mysterious substance in the universe–dark matter.
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The demonstration flight of America’s new astronaut capsule successfully docked with the International Space Station (ISS). The Dragon vehicle, launched by California’s SpaceX company, is designed to make the attachment autonomously. It is the latest in a series of tests the capsule must pass in order to get approval from NASA to transport people. All this particular mission is carrying is a test dummy and 90kg of supplies. The instrumented test dummy will remain in the capsule throughout the mission culminating in a Splashdown of Dragon SpaceX Capsule in the Atlantic Ocean on March 8, 2019.
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NASA's Voyager mission took advantage of a once-every-175-year alignment of the outer planets for a grand tour of the solar system. The twin spacecraft revealed details about Jupiter, Saturn, Uranus and Neptune -- using each planet's gravity to send them on to the next destination. Voyager set the stage for such ambitious orbiter missions as Galileo to Jupiter and Cassini to Saturn. Today both Voyager spacecraft continue to return valuable science from the far reaches of our solar system.
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Skywatchers around much of the world watched a complete lunar eclipse in 2018 that is the longest of this century which coincides with Mars’ closest approach in 15 years. The so-called “blood moon,” when it turns a deep red, was visible at different times in Australia, Africa, Asia, Europe and South America when the sun, Earth and moon line up perfectly, casting Earth’s shadow on the moon. The total eclipse lasts 1 hour and 43 minutes, with the entire event lasting closer to four hours. For about half the world, the moon will be partly or fully in Earth’s shadow for six hours and 14 minutes in all. The only total lunar eclipse of 2019 took place on Saturday, January 20, 2019 according to NASA.
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Mysterious signals have been picked up from distant galaxies. When fast radio bursts or FRBs, as they are called, reach Earth's telescopes they shine brightly for a few milliseconds, then disappear. Astronomers have detected dozens over the past decade, and have just announced they've found more of them, including a rare repeating signal. We don't know exactly what they are or where they're from, but here are several theories.
