April 2017 (Page 5)

Weekly Space Hangout – April 7, 2017: Weekly News Roundup Host: Fraser Cain (@fcain) Guests: Paul M. Sutter (pmsutter.com / @PaulMattSutter) Their stories this week: Rogue Black Hole! We use a tool called Trello to submit and vote on stories we would like to see covered each week, and then Fraser will be selecting the stories from there. Here is the link to the Trello WSH page (http://bit.ly/WSHVote), which you can see without logging in. If you’d like to vote, just create a login and help us decide what to cover! If you would like to join the Weekly Space Hangout Crew, visit their siteRead More →

Confirmed: Ceres Has a Transient Atmosphere Sometimes they see it, sometimes they don’t. That’s why scientists have never been completely sure if Ceres has an atmosphere or not. But now data from the Dawn spacecraft — in orbit of Ceres — confirms the dwarf planet really does have a very weak atmosphere, but it comes and goes. The on-again-off-again nature of Ceres’ atmosphere appears to be linked to solar activity. When energetic particles from the Sun hit exposed ice within the craters on Ceres, the ice can sublimate and create an “exosphere” that lasts for a week or so. Michaela Villarreal from UCLA, lead authorRead More →

What Are You Doing For Yuri’s Night? On April 12th, 1961, history was made when the first human being – Russian cosmonaut Yuri Gagarin – went into space. Similarly, on April 12th, 1981, the inaugural launch of the Space Shuttle took place. In recognition of these accomplishments, people from all around the world have been celebrating “Yuri’s Night” – a global festival honoring humanity’s past, present, and future in space – for over a decade and a half. This year will mark the 56th anniversary of Yuri Gagarin’s historic flight and of human spaceflight in general. As with every Yuri’s Night that has happened sinceRead More →

A Star Going Supernova In Slow Motion Discovered A supernova is a rare and wondrous event. Since these intense explosions only take place when a massive star reaches the final stage of its evolutionary lifespan – when it has exhausted all of its fuel and undergoes core collapse – or when a white dwarf in a binary star system consumes its companion, being able to witness one is quite the privilege. But recently, an international team of astronomers witnessed something that may be even rarer – a supernova event that appeared to be happening in slow-motion. Whereas supernova of its kind (SN Type Ibn) areRead More →

By Jove: Jupiter at Opposition 2017 Jupiter from January 7th, 0217. Image credit and copyright: Fred Locklear. Been missing the evening planets? Currently, Saturn and Venus rule the dawn, and Mars is sinking into the dusk as it recedes towards the far side of the Sun. The situation has been changing for one planet however, as Jupiter reaches opposition this week. Jupiter in 2017 Currently in the constellation Virgo near the September equinoctial point where the celestial equator meets the ecliptic in 2017, Jupiter rules the evening skies. Orbiting the Sun once every 11.9 years, Jupiter moves roughly one zodiacal constellation eastward per year, asRead More →