. . . just links from HayYoo.com and DanKostecki.com
Famed astronomer Galileo Galilei discovered the first four moons of Jupiter way back in the early 1600s. More than 400 years later, astronomers are still finding moons orbiting the solar system’s largest planet. We’re not just talking about one or two stragglers, either. Astronomers from the Carnegie Institution for Science have spotted 12 new moons orbiting Jupiter, bringing the total to 79.
The European Space Agency’s Rosetta mission to the comet 67P/Churyumov-Gerasimenko was one for the ages, providing an unprecedented look at this oddly shaped celestial object. The Rosetta probe captured nearly 100,000 images over the course of its mission, all of which are now freely available to the public in a single Rosetta archive.
NASA has confirmed its upcoming Mars 2020 rover will carry a small robotic passenger. The agency has been working on a helicopter drone for use on Mars, and it now plans to include this vehicle with the 2020 rover. The still-unnamed Mars helicopter will be the first heavier-than-air craft to fly on another planet. In doing so, it will help the 2020 rover mission cover more ground and learn more about Mars.
As temperatures outside dipped to well below freezing, and as blizzards pounded the Antarctic research station, German scientists were carefully tending to a remarkable veggie garden—one requiring no soil or natural sunlight. The success of their first harvest, which produced vibrant-looking lettuce, radishes, cucumbers, and other treats, represents a promising test run for similar greenhouses that could one day be built on Mars—or beyond.
The previous record holder for the farthest picture was NASA’s Voyager 1. The probe, which flew by Jupiter and Saturn before heading out to interstellar space, captured a distant picture of Earth on February 14th, 1990, when Voyager 1 was 3.75 billion miles away. Known as the “Pale Blue Dot,” it was the last picture Voyager 1 took before its cameras were turned off shortly afterward.
Voyager 1’s record remained unbroken for 27 years until December 5th, 2017, when New Horizons snapped its photo of the cluster at a distance of 3.79 billion miles from Earth. Then, the spacecraft broke its own record again two hours later, when it took photos of two objects in the Kuiper Belt, the large cloud of icy objects at the edge of the Solar System that New Horizons is currently traversing.
Image by NASA , via Wikimedia Commons
At present, the Voyager 1 spacecraft is 21 billion kilometers from Earth, or about 141 times the distance between the Earth and Sun. It has, in fact, moved beyond our Solar System into interstellar space. However, we can still communicate with Voyager across that distance. This week, the scientists and engineers on the Voyager team did something very special. They commanded the spacecraft to fire a set of four trajectory thrusters for the first time in 37 years to determine their ability to orient the spacecraft using 10-millisecond pulses.
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