Book Review: Cosmology for the Curious What will Curious George grow up to be? Being curious, then George will ask a lot of questions. And if lucky then physics will be George’s destiny, for physics seems to have so many answers. From the biggest to the smallest, that’s its purview. And for Delia Perlov and Alex Vilenkin in their book “Cosmology for the Curious” aim to answer a great many of those questions. Or at least those questions pertaining to mankind’s place in space. Cosmology is all about space and time. Which means that this book begins by traveling back in time. Traveling to theRead More →

Using the Subaru Telescope atop Maunakea, researchers have identified 11 dwarf galaxies and two star-containing halos in the outer region of a large spiral galaxy 25 million light-years away from Earth. The findings, published in The Astrophysical Journal, provide new insight into how these ‘tidal stellar streams’ form around galaxies. Powered by WPeMaticoRead More →

That Interstellar Asteroid is Probably Pretty Strange Looking On October 19th, 2017, the Panoramic Survey Telescope and Rapid Response System-1 (Pan-STARRS-1) telescope in Hawaii picked up the first interstellar asteroid, named 1I/2017 U1 (aka. `Oumuamua). After originally being mistaken for a comet, observations performed by the European Southern Observatory (ESO) and other astronomers indicated that it was actually an asteroid that measures about 400 meters (1312 ft) long. Thanks to data obtained by the ESO’s Very Large Telescope (VLT) at the Paranal Observatory in Chile, the brightness, color and orbit of this asteroid have been precisely determined. And according to a new study led byRead More →

Carnival of Space #536 This week’s Carnival of Space is hosted by Brian Wang at his Next Big Future blog. Click here to read Carnival of Space #536 And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should really join the carnival. Just email an entry to carnivalofspace@gmail.com, and the next host will link to it. It will help get awareness out there about your writing, help you meet others in the space community – and community is what blogging is all about. And if you really want to help out, sign upRead More →

Weekly Space Hangout – Nov. 22, 2017: Andy Weir and ARTEMIS Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Paul M. Sutter (pmsutter.com / @PaulMattSutter) Dr. Kimberly Cartier (KimberlyCartier.org / @AstroKimCartier ) Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg ChartYourWorld.org) Special Guests: This week, we are SUPER excited to welcome author Andy Weir (The Martian), back to the show to chat with us about his new book, Artemis. Viewers who have seen Andy’s first appearance on our show on January 9, 2015, will remember just how awesome he is as a guest – and why we can’t wait to catch up with him this week. Andy beganRead More →

Messier 60 – the NGC 4649 Galaxy Welcome back to Messier Monday! Today, we continue in our tribute to our dear friend, Tammy Plotner, by looking at the elliptical galaxy known as Messier 60. In the 18th century, while searching the night sky for comets, French astronomer Charles Messier kept noting the presence of fixed, diffuse objects he initially mistook for comets. In time, he would come to compile a list of approximately 100 of these objects, hoping to prevent other astronomers from making the same mistake. This list – known as the Messier Catalog – would go on to become one of the mostRead More →

ESO Observations Show First Interstellar Asteroid is Like Nothing Seen Before For the first time ever astronomers have studied an asteroid that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object. The new results appear in the journal Nature on 20 November 2017. ESO News Feed Go to Source Powered by WPeMaticoRead More →

ESOcast 138 Light: VLT Discovers First Interstellar Asteroid is like Nothing Seen Before (4K UHD) For the first time ever astronomers have studied an asteroid that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was travelling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object. Powered by WPeMaticoRead More →

(Phys.org)—NASA’s prolonged Kepler exoplanet-hunting mission, known as K2, has revealed the presence of another “super-Earth” alien world. The newly found planet, designated EPIC 246393474 b (or C12_3474 b), is more than five times more massive than the Earth and orbits its parent star in less than seven hours. The discovery is reported November 6 in a paper published on the arXiv pre-print repository. Powered by WPeMaticoRead More →

This new picture of the week, taken by the NASA/ESA Hubble Space Telescope, shows the dwarf galaxy NGC 4625, located about 30 million light-years away in the constellation of Canes Venatici (The Hunting Dogs). The image, acquired with the Advanced Camera for Surveys (ACS), reveals the single major spiral arm of the galaxy, which gives it an asymmetric appearance. But why is there only one such spiral arm, when spiral galaxies normally have at least two? Powered by WPeMaticoRead More →

Station Astronauts Unload Cygnus Science; Antares Launch Gallery Orbital ATK Antares rocket lifts off on Nov. 12, 2017 carrying the S.S. Gene Cernan Cygnus OA-8 cargo spacecraft from Pad 0A at NASA’s Wallops Flight Facility in Virginia to the International Space Station. Credit: Ken Kremer/kenkremer.com NASA WALLOPS FLIGHT FACILITY, VA – Astronauts aboard the International Space Station are now busily unloading nearly four tons of science experiments, research gear, station equipment and crew supplies – following the spectacular launch of the Orbital ATK Antares rocket earlier this week on Sunday Nov. 12 from Virginia’s eastern shore that propelled the Cygnus cargo freighter to an onRead More →

Clandestine Zuma SpySat’s SpaceX Liftoff Postponed Indefinitely to Resolve Payload Fairing Issue SpaceX Falcon 9 rocket blastoff of clandestine Zuma spysat to low earth orbit for a classified US government customer is postponed indefinitely from Launch Complex 39A at the Kennedy Space Center, FL, from last targeted launch date of 17 Nov 2017. Credit: Ken Kremer/Kenkremer.com KENNEDY SPACE CENTER, FL – Liftoff of the clandestine spy satellite codenamed ‘Zuma’ on a SpaceX Falcon 9 rocket has been postponed indefinitely to resolve a lingering issue with the testing of a payload fairing for another customer. SpaceX announced today, Friday, Nov 17, that they will ‘stand down’Read More →

Planet With Lava Oceans Also has an Atmosphere, Says New Study The super-Earth 55 Cancri e (aka. Janssen) is somewhat famous, as exoplanet go. Originally discovered in 2004, this world was one of the few whose discovery predated the Kepler mission. By 2016, it was also the first exoplanet to have its atmosphere successfully characterized. Over the years, several studies have been conducted on this planet that revealed some rather interesting things about its composition and structure. For example, scientists believed at one time that 55 Cancri e was a “diamond planet“, whereas more recent work based on data from the Spitzer Space Telescope concludedRead More →

The Delphinus Constellation Welcome to another edition of Constellation Friday! Today, in honor of the late and great Tammy Plotner, we take a look at “the Dolphin” – the Delphinus constellation. Enjoy! In the 2nd century CE, Greek-Egyptian astronomer Claudius Ptolemaeus (aka. Ptolemy) compiled a list of all the then-known 48 constellations. This treatise, known as the Almagest, would be used by medieval European and Islamic scholars for over a thousand years to come, effectively becoming astrological and astronomical canon until the early Modern Age. One of these is the northern constellation of Delphinus, which translates to “the Dolphin” in Latin. This constellation is locatedRead More →