Universe Today 9 Jul 2019, 19:32 UTC Titan is a distant, exotic, and dangerous world. It’s frigid temperatures and hydrocarbon chemistry is like nothing else in the Solar System. Now that NASA is heading there, some researchers are getting a jump on the mission by recreating Titan’s chemistry in jars.
SPACE.com 9 Jul 2019, 15:54 UTC For a few magic years in the 1960s and 1970s, a powerful rocket hefted humans towards the moon. The Saturn V is probably NASA's most famous rocket, with its iconic 363-foot (110-meter) profile showing up in everything space from Lego models to wall posters and mobile games.
SPACE.com 9 Jul 2019, 14:45 UTC It's a tiny bit colder in the outer reaches of the solar system, beyond the bubble of the sun's influence, where NASA's Voyager probes are in their fifth decade of speeding away from Earth. NASA engineers have turned off a heater on Voyager 2 because of the continually shrinking power supply...
Scientific American 9 Jul 2019, 14:17 UTC Five decades after sending humans to the Moon, NASA is tasked with repeating the feat—and doing it by 2024, the ambitious deadline set by U.S. President Donald Trump’s team. But it is unclear how the space agency will surmount some formidable technical, political and financial challenges to pull off a lunar landing in just four and a half years.
Scientific American 8 Jul 2019, 15:54 UTC More than 4,000 exoplanets are now known to orbit other stars. Indeed, astronomers suspect that such worlds are ubiquitous, estimating that, on average, every star in the Milky Way must have at least one planetary companion. But therein lies the rub: Although exoplanets seem to pop up everywhere, “everywhere” is far from the truth in describing where astronomers have actually looked.
EarthSky Blog 8 Jul 2019, 15:48 UTC Since the early 1900s, Einstein’s theory of gravity – called the general theory of relativity – has dominated the theories and calculations of cosmologists, those who explain the workings of our universe as a whole. General relativity has been proven again and again, most recently with the first direct black hole image. Now, physicists at Durham University in the U.K. say that Einstein’s general theory of relativity might not be the only way to explain how gravity works or how galaxies form.
The Planetary Society Blog 8 Jul 2019, 10:59 UTC The first pictures from The Planetary Society's LightSail 2 mission are on the ground!
Scientific American 5 Jul 2019, 14:43 UTC Many people were mystified by the action astronomers took a dozen years ago to demote Pluto to the status of a dwarf planet. Public reaction was swift and mostly negative. School wall charts and mobiles were forced to change. Mnemonics for planets in the Solar System had to be shortened. A beloved Disney character was slighted. The good will astronomers generally feel from the public was tested.