In November of 1998, the first modules of the International Space Station (ISS) were launched into orbit, and the first crew arrived almost two years later. With almost twenty years of hosting astronauts from all over the world, the ISS holds the record for the longest continuous human presence in Low Earth Orbit (LEO). After all that time, the ISS is beginning to show the signs of age.
Back in August, the ISS crew reported there was a leak in the Zvezda module. By Sept. 29th, Roscosmos announced that the crew had found the source of the leak, but determined it was worse than previously thought. In the latest news, Roscomos announced on Thursday (Oct. 14th) that the oxygen supply system has failed on a Russian segment of the ISS, but reassured everyone that the crew are not in danger.
Continue reading “The Oxygen Supply has Failed in the Russian Zvezda Module of the ISS. Don’t Worry, the Astronauts aren’t in Danger, but the Station is Showing its Age”
In the last year, Betelgeuse has experienced two episodes of dimming. Normally, it’s one of the ten brightest stars in the sky, and astrophysicists and astronomers got busy trying to understand what was happening with the red supergiant. Different research came up with some possible answers: Enormous starspots, a build-up of dust, pre-supernova convulsions.
Now a new study is introducing another wrinkle into our understanding of Betelgeuse. The authors say that Betelgeuse is both smaller and closer than previously thought.
Continue reading “Wow, Betelgeuse Might Be 25% Closer than Previously Believed”
It’s been over a thousand days since the historic kilonova observation, and yet the region continues to emit X-rays, long after models predicted they should have faded away. What’s going on?
Continue reading “It’s still possible to detect the site of the 2017 kilonova explosion”
January 31, 2021, will mark 50 years since the launch of Apollo 14. This historic mission was the first to broadcast a color television signal from the surface of the Moon and marked the heroic return to space of America’s first astronaut, Alan Shepard, who famously hit two golf balls off of the lunar regolith. While the significance of Apollo 14 and the Apollo program, in general, can’t be overstated, Shepard spent a mere two days on the lunar surface. The record for the longest human presence on the Moon, held by Eugene Cernan and Harrison Schmitt, is just over three days. All of the Apollo astronauts were exposed to high levels of radiation on the surface of the Moon but with such relatively short stays, the risk was considered to be acceptable.
Continue reading “You’ll Experience 200 Times More Radiation Standing on the Moon than Standing on the Earth”
Starting in late 2019, Betelgeuse began drawing a lot of attention after it mysteriously started dimming, only to brighten again a few months later. For a variable star like Betelgeuse, periodic dimming and brightening are normal, but the extent of its fluctuation led to all sorts of theories as to what might be causing it. Similar to Tabby’s Star in 2015, astronomers offered up the usual suspects (minus the alien megastructure theory!)
Whereas some thought that the dimming was a prelude to the star becoming a Type II supernova, others suggested that dust clouds, enormous sunspots, or ejected clouds of gas were the culprit. In any case, the “Great Dimming of Betelgeuse” has motivated an international team of astronomers to propose that a “Betelgeuse Scope” be created that cant monitor the star constantly.
Continue reading “What’s Happening with Betelgeuse? Astronomers Propose a Specialized Telescope to Watch the Star Every Night”
Atop the summit of Haleakala on the Hawaiian island of Maui sits the Panoramic Survey Telescope and Rapid Response System, or Pan-STARRS1 (PS1). As part of the Haleakala Observatory overseen by the University of Hawaii, Pan-STARRS1 relies on a system of cameras, telescopes, and a computing facility to conduct an optical imaging survey of the sky, as well as astrometry and photometry of know objects.
In 2018, the University of Hawaii at Manoa’s Institute for Astronomy (IfA) released the PS1 3pi survey, the world’s largest digital sky survey that spanned three-quarters of the sky and encompassed 3 billion objects. And now, a team of astronomers from the IfA have used this data to create the Pan-STARRS1 Source Types and Redshifts with Machine Learning (PS1-STRM), the world’s largest three-dimensional astronomical catalog.
Continue reading “The Most Comprehensive 3D Map of Galaxies Has Been Released”
The Mercury-bound BepiColombo spacecraft will observe Venus during tonight’s pass, on the hunt for phosphine and sulfur-dioxide.
The joint Japanese/European Space Agency’s BepiColombo spacecraft makes a scheduled pass near Venus tonight, while the cloud-shrouded planet has been very much in the news.
Continue reading “BepiColombo Mercury Mission to Make First Venus Flyby Tonight”
A new study shows how massive young stars create the kind of organic molecules that are necessary for life.
A team of researchers used an airborne observatory to examine the inner regions around two massive young stars. Along with water, they found things like ammonia and methane. These molecules are swirling around in a disk of material that surrounds the young stars.
That material is the same stuff that planets form from, and the study presents some new insights into how the stuff of life becomes incorporated into planets.
Continue reading “We’re Made of Starstuff. Especially From Extremely Massive Stars”
Flares from the sun are some of the nastiest things in the solar system. When the sun flares, it belches out intense X-ray radiation (and sometimes even worse). Predicting solar flares is a tricky job, and a new research paper sheds light on a possible new technique: looking for telltale ripples in the surface of the sun minutes before the blast comes.
Continue reading “Do Ripples on the Surface of the Sun tell us that a Flare is Coming?”
The search for exoplanets has revealed types of planets that are nothing like the worlds in our own Solar System. One such type is the hot-Jupiter. They’re gas giants like Jupiter that orbit their host star very closely. That proximity raises their temperatures to extreme heights.
Hot-Jupiters can be hot enough to vaporize metals, making their atmospheres un-Earthlike. A team of astronomers examining one exoplanet has found 7 different gaseous metals in its atmosphere.
Continue reading “An Exoplanet So Hot There Are 7 Different Kinds of Gaseous Metals in its Atmosphere”