Click to embiggen Apparently, since last December at least, NASA has been creating vintage-style travel posters for exoplanets – the planets we’ve been discovering around faraway stars. This one, HD 40307g, is eight times Earth’s mass, and might be either a really large rocky planet (like Earth) or a really small ice giant (like Neptune). Either way, base jumping would definitely be different there. There are quite a few other potential destinations at the Exoplanet Travel Bureau, all of which have their own unique charms.
These are prehistoric animals compared to their modern relatives and, for scale, a human. A human who’s interested in what they’re like… except when…
Look out! HELL PIG!
There are plenty more of the majestic giants (and some terrifying ones) at NPR’s Skunk Bear tumblog.
The New Horizons Long Range Reconnaissance Imager (LORRI) snapped this photo of Jupiter’s ring system on February 24, 2007, from a distance of 7.1 million kilometers (4.4 million miles).
This processed image shows a narrow ring, about 1,000 kilometers (600 miles) wide, with a fainter sheet of material inside it. The faint glow extending in from the ring is likely caused by fine dust that diffuses in toward Jupiter. This is the outer tip of the “halo,” a cloud of dust …
SOURCE:Based on “NASA Windbots Could Explore Gas Giant Jupiter”, Sky News, 24 July 2015, as used in the post as used in the post “Windbots to explore Jupiter – the bumpier the ride, the better..”
ABSTRACT: The planet Jupiter is 35 light-minutes from Earth (give or take a couple of minutes depending on where in its orbit the planet is).
So a robot floating in the turbulent winds of Jupiter would take that long to send a mes…
Three names for one little fish. And those are just the beginning.
I found this one on the Scientific Illustration tumblog, which quoted Wikipedia on the doree (etc.):
John Dory, St Pierre or Peter’s Fish, refers to fish of the genus Zeus, especially Zeus faber, of widespread distribution. It is an edible benthic coastal marine fish with a laterally compressed olive-yellow body which has a large dark spot, and long spines on the dorsal fin. The dark spot is used to flash an ‘evil ey…
These are ostensibly Cochin chickens, or forerunners of what we’d call Cochins today. They’re a breed with a *lot* of character, and are uniquely suited, temperamentally, for being “pet” chickens moreso than egg factories or walking meat supplies. Despite the name (after a part of India), they’re originally from China.
It’s the most Earth-like planet yet discovered. Kepler 452b sits in the “Goldilocks” zone around its star, not too hot and not too cold, and is about the same size (or is a little larger) and made of something like the same stuff as the planet we’re sitting around on right now. It takes 365 days to orbit around its sun, too. NASA’s calling it ou…
SONG: “How the Moon Began.” [Download] ARTIST: grant. SOURCE:Based on “Puzzle of Moon’s origin resolved”, Nature, 8 April 2015, as used in the post “Scientists: The moon was formed when Earth smacked her twin sister.” ABSTRACT: Once again, Allison said this was the story that needed a song, and she was right. At around the same time, I was listening to “Cruel Sister” and thinking about murder ballads, but somehow, this didn’t come out folksy at all. I mean, except that it’s about ancient sisters getting into some kind of deadly fight. And has finger picking in it. I also kind of set out to write a *gushi* again, but that didn’t happen either – it kept wanting to rhyme, and then slant or else kind of extend past the rhyme (what’s the name for when that happens? Cole Porter does it all the time…). The thing that sounds like an accordion, isn’t. It’s a […]
Nature reports on a new way of looking at lunar formation that almost reads like a myth. The moon came to be when Earth collided with a near-identical sister planet: The ‘giant impact’ hypothesis, first proposed in the 1970s, suggests that the Moon was formed from the debris scattered when a Mars-sized planet slammed into the early Earth some 4.5 billion years ago. This fits well with what we know about the Moon, including its mass and lack of any significant iron core. But the theory also implies that the Moon is made up mostly of impactor material. Since lunar and Earth rocks have such similar compositions, this suggests that Earth and the planet that smacked into it resembled each other too. They would have needed to be sister planets, with a relationship much closer than that of any other planetary bodies we have studied in our Solar System.
Click to embiggen vastly The European Space Agency was watching the jets: Astronomers using ESA’s Herschel space observatory have detected emission from the base of black-hole jets for the first time. While studying the black-hole binary system GX 339-4 in a multi-wavelength observation campaign, they noticed changes in the source’s X-ray and radio emissions signalling the onset of powerful jets being released from the black hole’s vicinity. This prompted the astronomers to observe the source at far-infrared wavelengths with Herschel. As the first observation of emission from jets in a black-hole binary system at these wavelengths, the data have allowed the astronomers to probe the jets down to their base, where the far-infrared emission originates.
Popular Science takes a wide-eyed look at gravitational lensing, the phenomenon responsible for splitting this supernova into four different images in the night sky: But in between this supernova and Earth, there happens to be a massive galaxy, within a cluster of galaxies, which has had an interesting effect on the path of the light coming from this exploded star. Using the Hubble Space Telescope, researchers from the University of California, Berkeley observed the galaxy’s gravitational lensing effect on the supernova’s light. Because the galaxy is so massive, it warps space-time around it, which bends the light as it travels to Earth. As a result, the galaxy creates four separate images of the supernova it its edges—a phenomenon called an Einstein’s Cross. Since four images arise, it means the supernova is almost exactly behind the galaxy in relation to us. When light from a distant object passes by an extremely massive object, the warped space-time […]
Scientific American digs into one of the most recognizable, most influential records (and cover images) – the astronomical story behind Joy Division’s Unknown Pleasures album art: …[T]he cover is directly linked to a figure in The Cambridge Encyclopaedia of Astronomy (1977 edition)—a stacked plot of radio signals from a pulsar. My interest was piqued. I’m far from a music and album art expert but visualizing astronomical phenomena is part of my job description. Although I jotted down notes, my intention to look further into things faded. Then, nearly two years later, when chatting with artist Philippe Decrauzat about his influences, my jaw hit the floor. His collection of favorite 1960s and 1970s Scientific American graphics included the stacked plot. It had been printed as a full-page figure in the January 1971 issue; white radio pulses on a field of cyan. My interest was piqued anew, to say the least. When folks refer to the Unknown […]
This is a celestial event recorded beautifully in E. Weiß’s Bilderatlas der Sternenwelt, the “Picture-Atlas of the Star-World”. I’m not sure, but I think that’s Niagara Falls. In the decades before Edison, the night sky must have been lovely. Dark. Except when lit from above. Image via ia Public Domain Review
Science Daily has us imagining that message being broadcast to an an interstellar ship full of would-be colonists, thanks to new research that’s found some so-called “Goldilocks planets” are actually star-belches: “This result is exciting because it explains, for the first time, all the previous and somewhat conflicting observations of the intriguing dwarf star Gliese 581, a faint star with less mass than our Sun that is just 20 light years from Earth,” said lead author Paul Robertson, a postdoctoral fellow at Penn State who is affiliated with Penn State’s Center for Exoplanets and Habitable Worlds. As a result of this research, the planets now confirmed to be orbiting this dwarf star total exactly three. “We also have proven that some of the other controversial signals are not coming from two additional proposed Goldilocks planets in the star’s habitable zone, but instead are coming from activity within the star itself,” said Suvrath Mahadevan, an assistant […]
Nature writes so calmly about shockwaves of such epic proportions: Four massive clusters of galaxies are plowing into one another at a crash site about five billion light-years from Earth. The conglomeration is creating one giant concentration of thousands of galaxies. “This is really one of the most massive clusters we know of and one of the most complex mergers we know of,” said Reinout van Weeren of the Harvard–Smithsonian Center for Astrophysics (CfA) in Boston, Massachusetts…. Such naturally arising particle accelerators have been observed before, most commonly in the remnants of supernovae. But MACS J0717+3745 may turn out to be one of the most powerful particle accelerators known. The observations suggest the particles there are reaching energies up to a million times those in Earth-bound atom smashers, such as the Large Hadron Collider in Switzerland.
Harvard researchers have found a whole new kind of planet. It’s just like ours, only way bigger: Astronomers announced today that they have discovered a new type of planet – a rocky world weighing 17 times as much as Earth. Theorists believed such a world couldn’t form because anything so hefty would grab hydrogen gas as it grew and become a Jupiter-like gas giant. … “This is the Godzilla of Earths!” adds CfA researcher Dimitar Sasselov, director of the Harvard Origins of Life Initiative. “But unlike the movie monster, Kepler-10c has positive implications for life.” … The newfound mega-Earth, Kepler-10c, circles a sunlike star once every 45 days. It is located about 560 light-years from Earth in the constellation Draco. The system also hosts a 3-Earth-mass “lava world,” Kepler-10b, in a remarkably fast, 20-hour orbit.
Nature covers the hard decisions that NASA faces in its latest budget… which may include shutting down a great space telescope (and an asteroid watchdog) to keep some other great telescopes running: he infrared Spitzer Space Telescope, however, may be deactivated due to lack of funding. And a bid to convert data collected by the Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) into a format usable for astrophysics was also deemed too expensive. The decisions come at a time when Congress is tightening NASA’s budget, and about half of what astrophysics funding the agency does have goes to the James Webb Space Telescope (JWST), which is being readied for launch in 2018. In 2014, for example, the total astrophysics division funding was about $1.3 billion, of which $658 million went to JWST. Spitzer received $16.5 million this year, and was requesting even less for 2015, but NASA still judged even that amount to be too […]
Universe Today celebrates a Goldilocks discovery. The Kepler mission has found a planet just the right size and in just the right place to have life on it: The newly-confirmed extrasolar planet has been dubbed Kepler-186f. It is the fifth and outermost planet discovered orbiting the red dwarf star Kepler-186, located 490 light-years away. Kepler-186f completes one orbit around its star every 130 days, just within the outer edge of the system’s habitable zone. … “This is the first definitive Earth-sized planet found in the habitable zone around another star,” says lead author Elisa Quintana of the SETI Institute at NASA Ames Research Center. “Finding such planets is a primary goal of the Kepler space telescope. The star is a main-sequence M-dwarf, a very common type. More than 70 percent of the hundreds of billions of stars in our galaxy are M-dwarfs.” … But, being cooler stars, M-dwarfs have long lifespans, offering planets in their […]
Click to embiggen This is a galaxy named M83, which is usually a faint smudge in the constellation Hydra. Up close, however, Hubble Space Telescope was able to see that it’s “ablaze with star formation.” The image is also cool for another reason: This image is being used to support a citizen science project titled STAR DATE: M83. The primary goal is to estimate ages for approximately 3,000 star clusters. Amateur scientists will use the presence or absence of the pink hydrogen emission, the sharpness of the individual stars, and the color of the clusters to estimate ages. Participants will measure the sizes of the star clusters and any associated emission nebulae. Finally, the citizen scientists will “explore” the image, identifying a variety of objects ranging from background galaxies to supernova remnants to foreground stars. Want to find out more? Go here: http://www.projectstardate.org.
This is the face of the man who was ROBBED by the third episode of Cosmos. Planetary motion? Elliptical orbits? Not Newton’s ideas – this guy’s. And the story of how he figured them out is pretty darn interesting. See, Kepler was a divinity student with a really fascinating theology…. This image comes from The Illustrated Magazine of Art, Volume 3. No idea who the artist was, but possibly Alexander Montgomery himself. He published the magazine.