March 2017 (Page 2)

Carnival of Space #502 This week’s Carnival of Space is hosted by Allen Versfeld at his Urban Astronomer blog. Click here to read Carnival of Space #502. 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 Test Fires New Engine Controlling ‘Brain’ for First SLS MegaRocket Mission NASA engineers conduct a test of the first RS-25 engine controller that will be used on an actual Space Launch System flight on the A-2 Test Stand at Stennis Space Center on March 23, 2017. The RS-25 engine, with the flight controller, was test fired for a full-duration 500 seconds. Credits: NASA/SSC Engineers carried out a critical hot fire engine test firing with the first new engine controlling ‘brain’ that will command the shuttle-era liquid fueled engines powering the inaugural mission of NASA’s new Space Launch System (SLS) megarocket. The first integrated SLSRead More →

See Mercury At Dusk, New Comet Lovejoy At Dawn Mercury requests the company of your gaze now through the beginning of April, when it shines near Mars low in the west after sunset. Created with Stellarium March has been a busy month for planet and comet watchers. Lots of action. Venus, the planet that’s captured our attention at dusk in the west for months, is in inferior conjunction with the Sun today. Watch for it to rise before the Sun in the eastern sky at dawn in about a week. Mercury like Venus and the Moon shows phases when viewed through a telescope. Right now, theRead More →

What About a Mission to Titan? As you probably know, NASA recently announced plans to send a mission to Jupiter’s moon Europa. If all goes well, the Europa Clipper will blast off for the world in the 2020s, and orbit the icy moon to discover all its secrets. And that’s great and all, I like Europa just fine. But you know where I’d really like us to go next? Titan. Titan, as you probably know, is the largest moon orbiting Saturn. In fact, it’s the second largest moon in the Solar System after Jupiter’s Ganymede. It measures 5,190 kilometers across, almost half the diameter ofRead More →

Juno’s Monday Jupiter Flyby Promises New Batch of Images & Science Juno is only part way through its mission to Jupiter, and already we’ve seen some absolutely breathtaking images of the gas giant. On Monday, the Juno spacecraft will flyby Jupiter again. This will be the craft’s 5th flyby of the gas giant, and it’ll provide us with our latest dose of Jupiter science and images. The first 4 flybys have already exceeded our expectations. Juno will approach to within 4,400 km of Jupiter’s cloud tops, and will travel at a speed of 207,600 km/h. During this time of closest approach, called a perijove, allRead More →

Nighttime Delta IV Blastoff Powers Military Comsat to Orbit for U.S. Allies: Photo/Video Gallery Blastoff of ULA Delta IV rocket carrying the Wideband Global SATCOM (WGS-9) comsat to orbit for the U.S. Air Force from Space Launch Complex-37 on Cape Canaveral Air Force Station, Fl, on Mar. 18, 2017. Credit: Ken Kremer/kenkremer.com CAPE CANAVERAL AIR FORCE STATION, FL – The second round of March Launch Madness continued with the thunderous nighttime blastoff of a ULA Delta IV rocket powering a super swift military communications satellite to orbit in a collaborative effort of U.S. Allies from North America, Europe and Asia and the U.S. Air Force.Read More →

Watch Stars Orbit The Milky Way’s Supermassive Black Hole The Milky Way’s supermassive black hole, called Sagittarius A* (or Sgr A*), is arrowed in the image made of the innermost galactic center in X-ray light by NASA’s Chandra Observatory. To the left or east of Sgr A* is Sgr A East, a large cloud that may be the remnant of a supernova. Centered on Sgr A* is a spiral shaped group of gas streamers that might be falling onto the hole. Credit: NASA/CXC/MIT/Frederick K. Baganoff et al. When your ordinary citizen learns there’s a supermassive black hole with a mass of 4 million suns suckingRead More →

Process Behind Martian Streaks Continues To Puzzle It’s a well-documented fact that roughly 4 billion years ago, Mars had liquid water flowing on its surface. However, there have also been recent findings that suggest that Mars might periodically have liquid water on its surface today. One of the strongest bits of evidence comes in the form of Recurring Slope Lineae, which are ventured to be seasonal flows of salty water which occur during Mars’ warmest months. However, a new study produced by an international team of scientists has casts doubt on this theory and offered another possible explanation. Using numerical simulations, they show how aRead More →

German ‘Largest Artificial Sun’ To Generate Climate Friendly Fuel Hydrogen is the most abundant element in the Universe. But here on Earth, it’s rather rare. That’s unfortunate, because in our warming world, its status as an emissions-free fuel makes it a coveted chemical. If German researchers are successful, their Synlight project will help make renewable hydrogen fuel a reality. Dubbed the “artificial Sun”, the Synlight uses concentrated light to power Thermochemical Water Splitting (TWS.) Every school child knows you can produce hydrogen by electrolysis—running an electric current through water. But that takes an enormous amount of electricity. TWS might be a better way of gettingRead More →

Curiosity Captures Gravity Wave Shaped Clouds On Mars This week, from March 20th to 24th, the 48th Lunar and Planetary Science Conference will be taking place in The Woodlands, Texas. Every year, this conference brings together international specialists in the fields of geology, geochemistry, geophysics, and astronomy to present the latest findings in planetary science. One of the highlights of the conference so far has been a presentation about Mars’ weather patterns. As a team of researchers from the Center for Research in Earth and Space Sciences (CRESS) at York University, demonstrated, Curiosity obtained of some rather interesting images of Mars’ weather patterns over theRead More →

SpaceX Outbids ULA for Military GPS Contract Igniting Fierce Launch Competition Upgraded SpaceX Falcon 9 blasts off with Thaicom-8 communications satellite on May 27, 2016 from Space Launch Complex 40 at Cape Canaveral Air Force Station, FL. 1st stage booster landed safely at sea minutes later. Credit: Ken Kremer/kenkremer.com KENNEDY SPACE CENTER, FL – The fierce competition for lucrative launch contracts from the U.S. Air Force just got more even intense with the announcement that SpaceX outbid arch rival United Launch Alliance (ULA) to launch an advanced military Global Positioning System (GPS III) navigation satellite to orbit in approx. 2 years. The U.S. Air ForceRead More →

New Study Wants To Rip T-Rex From Its Place On Dino Tree To kids, there are only two kinds of dinosaurs: meat-eaters and plant-eaters. But to paleontologists, those are just diet distinctions. Paleontologists divide dinos into two different groups based largely on pelvic structure: reptile-hipped saurischians, and bird-hipped ornithischians. Those two categories are called ‘clades’, and they’re fundamental to the study of dinosaurs. But a new study is casting doubt on those two groups, as well as moving the infamous Tyrannosaurus Rex to a new spot on the dinosaur family tree. The study, by Matthew G. Baron, David B. Norman & Paul M. Barrett, wasRead More →

Astronauts Capture Great Views of Mount Etna Eruption Mount Etna is Europe’s most active volcano, and it’s been spouting off since late February 2017. It spewed lava and gas with a rather big eruption last week, where 10 people were actually injured. The Expedition 50 crew on board the International Space Station have been able to capture both day and nighttime views of the activity from orbit. The stunning view, above, was taken on March 17, 2017. The original photo, which you can see on NASA’s Gateway to Astronaut Photography of Earth website is actually a bit hard to make out. But space enthusiast RiccardoRead More →

Curiosity’s Battered Wheels Show First Breaks Since it landed on August 6th, 2012, the Curiosity rover has spent a total of 1644 Sols (or 1689 Earth days) on Mars. And as of March 2017, it has traveled almost 16 km (~10 mi) across the planet and climbed almost a fifth of a kilometer (0.124 mi) uphill. Spending that kind of time on another planet, and traveling that kind of distance, can certainly lead to its share of wear of tear on a vehicle. That was the conclusion when the Curiosity science team conducted a routine check of the rover’s wheels on Sunday, March 19th, 2017.Read More →

Why Doesn’t Earth Have Rings? Before we really get started on today’s episode, I’d like to share a bunch of really cool pictures created by my friend Kevin Gill. Kevin’s a computer programmer, 3-D animator and works on climate science data for NASA. And in his spare time, he uses his skills to help him imagine what the Universe could look like. For example, he’s mapped out what a future terraformed Mars might look like based on elevation maps, or rendered moons disturbing Saturn’s rings with their gravity. Earth’s Rings over San Bernadino. Credit: Kevin Gill (CC BY-SA 2.0) But one of my favorite setsRead More →

SpaceX & NASA Studying 2020 Landing Sites For Dragon As part of their effort to kick-start the eventual colonization of Mars, SpaceX is sending an unmanned Dragon spacecraft to Mars. Initially, that mission was set for 2018, but is now re-scheduled for 2020. Now, SpaceX says they’re working with NASA to select a suitable landing site for their first Dragon mission to Mars. At a presentation in Texas on March 18th, Paul Wooster of SpaceX said that they have been working with scientists at NASA’s Jet Propulsion Laboratory (JPL) to identify candidate landing sites on the surface of Mars. In order to aid colonization, theRead More →

What’s the Difference Between a Rocket and Space Plane? Amazing Hand-Drawn Animations Explain It All You gotta love Earth’s atmosphere. It basically makes life (as we know it) possible on our planet by providing warmth and air to breathe, as well as protecting us from nasty space things like radiation and smaller asteroids. But for studying space (i.e., astronomy) or coming back to Earth from space, the atmosphere is a pain. Last year, we introduced you to freelance animator and storyboard artist Stanley VonMedvey, who started creating short, hand-drawn videos to explain a complex topic: how spacecraft work. These videos are wonderfully concise, clear andRead More →