North Korea released some pictures they say come from their recent missile test. The missile they tested—the intermediate-range Hwasong-12—can reach the U.S. territory of Guam. According to most North Korea observers, the country hopes the tests will bring the U.S. back to the negotiating table.Continue reading “North Korea Releases Pictures of Earth They Say Were Taken From Space”
Those images showed everyone that what appears to be a tiny, empty part of the sky contains thousands of galaxies, some dating back to the Universe’s early days. Each of those galaxies can have hundreds of billions of stars. These early galaxies formed only a few hundred million years after the Big Bang. The images inspired awe in the human minds that took the time to understand them. And they’re part of history now.
The upcoming Nancy Grace Roman Space Telescope (NGRST) will capture its own version of those historical images but in wide-angle. To whet our appetites for the NGRST’s image, a group of astrophysicists have created a simulation to show us what it’ll look like.Continue reading “Nancy Grace Roman Telescope Will do its Own, Wide-Angle Version of the Hubble Deep Field”
The ESO has released some stunning new images of Orion’s Flame Nebula. They’re from a few years ago but are newly processed as part of the Orion cloud complex study. The images have led to discoveries in the often-observed Orion cloud complex.Continue reading “A New Image Reveals Orion’s Flame Nebula in Infrared”
The interplay of energy and matter creates beautiful sights. Here on Earth, we enjoy rainbows, auroras, and sunsets and sunrises. But out in space, nature creates extraordinarily dazzling structures called nebulae that can span hundreds of light-years. Nebulae are probably the most beautiful objects out there.
While searching for young stars and their circumstellar disks, Hubble captured a classic reflection nebula.Continue reading “This is a Classic Example of a Reflection Nebula, Where the Reflected Light From Young Hot Stars Illuminates a Protostellar Cloud of Gas and Dust”
BepiColombo made a quick visit to Venus in August and is on to its next rendezvous. On October 1st it’ll perform a flyby of Mercury, the spacecraft’s eventual destination. This visit is just a little flirtation—one of six—ahead of its eventual orbital link-up with Mercury in late 2025.
The quick visit will yield some scientific results, though, and they’ll be just a taste of what’s ahead in BepiColumbo’s one-year mission to Mercury.Continue reading “BepiColombo Meets Mercury for the First Time on October 1”
NASA’s Perseverance rover is practically bristling with cameras. And those cameras were busy during the rover’s breathtaking descent to the Martian surface. Now NASA has released images and videos of the blessed event.Continue reading “Watch Perseverance Land on Mars. Mind…Blown”
A group of amateur and professional astronomers have collaborated to create what may be the highest resolution global map of Mars ever created with images taken from Earth.
The images were taken with the 1-meter telescope at the Pic-du-Midi observatory in the Pyrenees of France, during several nights in October and November, 2020 when Mars was at opposition, or its closest approach to Earth.Continue reading “A High Resolution, Cross-Eyed Look at the Entire Surface of Mars”
NASA’s Mariner 9 was the first spacecraft to orbit another planet when it reached Mars in late 1971. It got there only a few weeks before the Soviet Union’s Mars 2 and Mars 3 spacecraft, despite being launched 11 days later than those missions. Unfortunately, there was a major dust storm when Mariner 9 arrived, and NASA had to wait until January before the spacecraft could get good images.
When it did get those images, they revealed a surprise: volcanoes and lava flows cover large portions of the Martian surface.Continue reading “This Martian Lava Tube Skylight is 50 Meters Across. The Biggest Lava Tube on Earth is Only 15 Meters Across”
NASA’s TESS planet-finding spacecraft completed its primary mission about 3 months ago. TESS’s (Transiting Exoplanet Survey Satellite) job was to search the brightest stars nearest to Earth for transiting exoplanets. It found 74 confirmed exoplanets, with another ~1200 candidates awaiting confirmation.
It surveyed 75% of the sky during its two-year primary mission, and now NASA has released a composite image of the northern sky, made up of more than 200 individual images.Continue reading “Time Flies. NASA Releases a Mosaic of TESS’ View of the Northern Sky After Two Years of Operation”
Does the life of an astronomer or planetary scientists seem exciting?
Sitting in an observatory, sipping warm cocoa, with high-tech tools at your disposal as you work diligently, surfing along on the wavefront of human knowledge, surrounded by fine, bright people. Then one day—Eureka!—all your hard work and the work of your colleagues pays off, and you deliver to humanity a critical piece of knowledge. A chunk of knowledge that settles a scientific debate, or that ties a nice bow on a burgeoning theory, bringing it all together. Conferences…tenure…Nobel Prize?
Well, maybe in your first year of university you might imagine something like that. But science is work. And as we all know, not every minute of one’s working life is super-exciting and gratifying.
Sometimes it can be dull and repetitious.Continue reading “Machine Learning Software is Now Doing the Exhausting Task of Counting Craters On Mars”