RSSfeeds (Page 731)

How Far is Mercury from the Sun? Mercury is famously known for being a scorching hot world. On the side that is facing towards the Sun, conditions can get pretty molten, reaching temperatures of up to 700 K (427 °C; 800°F) in the equatorial region. The surface is also airless, in part because any atmosphere it could generate would be blown away by solar wind. Hardly surprising, considering it is the closest planet to our Sun. But just how close is it? On average, it’s slightly more than one-third the distance between Earth and the Sun. However, its orbital eccentricity is also the greatest ofRead More →

So it Begins, Red Dragon Delayed 2 Years to 2020 Artists concept for sending SpaceX Red Dragon spacecraft to land propulsively on Mars as early as 2020. Credit: SpaceX KENNEDY SPACE CENTER, FL – With so many exciting projects competing for the finite time of SpaceX’s super talented engineers, something important had to give. And that something comes in the form of slipping the blastoff of SpaceX’s ambitious Red Dragon initiative to land the first commercial spacecraft on Mars by 2 years – to 2020. The Red Dragon launch postponement from 2018 to 2020 was announced by SpaceX president Gwynne Shotwell during a prelaunch pressRead More →

UFO Visualizations Show the Trends in Alien Spotting. Saucers Are Down, Lights Are Up When it comes to conspiracy theories and modern preoccupations, few things are more popular than unidentified flying objects (UFOs) and alien abductions. For over half a century, there have been rumors, reports, and urban legends about aliens coming to Earth, dabbling with our genetics, and conducting weird (and often invasive) experiments on our citizens. And while opinions on what drives this popular phenomenon tend to differ (some say hysteria, others that it is media-driven), a few things are clear. For one, sightings appear to take place far more in the UnitedRead More →

Finally, the Missing Link in Planetary Formation! The theory of how planets form has been something of an enduring mystery for scientists. While astronomers have a pretty good understanding of where planetary systems comes from – i.e. protoplanetary disks of dust and gas around new stars (aka. “Nebular Theory“) – a complete understanding of how these discs eventually become objects large enough to collapse under their own gravity has remained elusive. But thanks to a new study by a team of researchers from France, Australia and the UK, it seems that the missing piece of the puzzle may finally have been found. Using a seriesRead More →

You Can’t See the Great Wall of China From Space, But You Can See Their Giant Solar Farm – While the Great Wall of China is not readily visible from space (we debunked that popular myth here) there are several other human-built structures that actually can be seen from space. And that list is growing, thanks to the large solar farms being built around the world. The solar farm with the current distinction of being the largest in the world — as of February 2017 – is the Longyangxia Dam Solar Park in China. These new images from NASA’s Landsat 8 satellite show the farm’sRead More →

Rise of the Super Telescopes: The Overwhelmingly Large Telescope We humans have an insatiable hunger to understand the Universe. As Carl Sagan said, “Understanding is Ecstasy.” But to understand the Universe, we need better and better ways to observe it. And that means one thing: big, huge, enormous telescopes. In this series we’ll look at 6 of the world’s Super Telescopes: The Giant Magellan Telescope The Overwhelmingly Large Telescope The 30 Meter Telescope The European Extremely Large Telescope The Large Synoptic Survey Telescope The James Webb Space Telescope The Overwhelmingly Large Telescope The OWL (Overwhelmingly Large Telescope) was a gargantuan telescope proposed by the EuropeanRead More →

Join the Eclipse MegaMovie 2017 Chronicling the August Total Solar Eclipse The November 2012 total solar eclipse as seen from Australia. The Eclipse Megamovie project hopes to capture a similar extended view. Image credit and copyright: Alan Dyer/Amazing Sky Photography. Ready for the “Great American Eclipse?” We’re now less than six months out from the long-anticipated total solar eclipse spanning the contiguous United States from coast-to-coast. And while folks are scrambling to make last minute plans to stand in the path of totality on Monday, August 21st 2017, a unique project named the Eclipse Megamovie 2017 seeks seeks to document the view across the entireRead More →

Rise of the Super Telescopes: The Giant Magellan Telescope We humans have an insatiable hunger to understand the Universe. As Carl Sagan said, “Understanding is Ecstasy.” But to understand the Universe, we need better and better ways to observe it. And that means one thing: big, huge, enormous telescopes. In this series we’ll look at 6 of the world’s Super Telescopes: The Giant Magellan Telescope The Overwhelmingly Large Telescope The 30 Meter Telescope The European Extremely Large Telescope The Large Synoptic Survey Telescope The James Webb Space Telescope The Giant Magellan Telescope The Giant Magellan Telescope (GMT) is being built in Chile, at the LasRead More →

Elon Musk Announces Daring SpaceX Dragon Flight Beyond Moon with 2 Private Astronauts in 2018 SpaceX CEO Elon Musk announced plans on Feb. 27, 2017 to launch a commercial crew SpaceX Dragon to beyond the Moon and back with two private astronauts in 2018 using a SpaceX Falcon Heavy launching from the Kennedy Space Center. Credit: SpaceX KENNEDY SPACE CENTER, FL – Breaking News – Elon Musk, billionaire founder and CEO of SpaceX, announced today (27 Feb) a daring plan to launch a commercial manned journey to beyond the Moon and back in 2018 flying aboard an advanced crewed Dragon spacecraft paid for by twoRead More →

This is Actual Science. Crystals at the Earth’s Core Power its Magnetic Field Whether or not a planet has a magnetic field goes a long way towards determining whether or not it is habitable. Whereas Earth has a strong magnetosphere that protects life from harmful radiation and keeps solar wind from stripping away its atmosphere, planet’s like Mars no longer do. Hence why it went from being a world with a thicker atmosphere and liquid water on its surface to the cold, desiccated place it is today. For this reason, scientists have long sought to understand what powers Earth’s magnetic field. Until now, the consensusRead More →

Carnival of Space #498 This week’s Carnival of Space is hosted by Allen Versfeld at his Urban Astronomer blog. Click here to read Carnival of Space #498. And if you’re interested in looking back, here’s an archive to 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, signRead More →

NASA Studies Whether to Add Crew to 1st SLS Megarocket Moon Launch in 2019 NASA’s Space Launch System rocket will be the most powerful rocket in the world and, with the agency’s Orion spacecraft, will launch America into a new era of exploration to destinations beyond Earth’s orbit. Their first integrated mission is planned as uncrewed, but NASA now is assessing the feasibility of adding crew. Credits: NASA/MSFC KENNEDY SPACE CENTER, FL – At the request of the new Trump Administration, NASA has initiated a month long study to determine the feasibility of converting the first integrated unmanned launch of the agency’s new Space LaunchRead More →

SETI Has Already Tried Listening to TRAPPIST-1 for Aliens The Trappist-1 system has been featured in the news quite a bit lately. In May of 2016, it appeared in the headlines after researchers announced the discovery of three exoplanets orbiting around the red dwarf star. And then there was the news earlier this week of how follow-up examinations from ground-based telescopes and the Spitzer Space Telescope revealed that there were actually seven planets in this system. And now it seems that there is more news to be had from this star system. As it turns out, the Search for Extraterrestrial Intelligence (SETI) Institute was alreadyRead More →

The Cepheus Constellation Welcome back to Constellation Friday! Today, in honor of the late and great Tammy Plotner, we will be dealing with the King of Ethiopia himself, the Cepheus constellation! 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 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 Cepheus, named after the mythological king of Ethiopia. Today, it is one of theRead More →

Supernova Blast Wave Still Visible After 30 Years 30 years ago today, a supernova explosion was spotted in the southern hemisphere skies. The exploding star was located in the Large Magellanic Cloud — a satellite galaxy of the Milky Way – and Supernova 1987A was the brightest and nearest supernova explosion for modern astronomers to observe. This has provided an amazing opportunity to study the death of a star. Telescopes around the world and in space have been keeping an eye on this event, and the latest images show the blast wave from the original explosion is still expanding, and it has plowed into aRead More →