NPR: Earth Sees First Image Of A Black Hole.
“Researchers at the Event Horizon Telescope project say they were able to create an image of a black hole by using a network of eight radio telescopes to create “a virtual telescope dish as large as the Earth itself,” the National Science Foundation says.
The breakthrough, Doeleman said, came after a decade of work to align the myriad working parts of the project and gain the highest resolution possible from the Earth’s surface. Finally, in April of 2017, he said, “all of the dishes in the Event Horizon Telescope swiveled, turned and stared” at the core of M87. From that data came the image that was released Wednesday.”
See also: XKCD: M87 Black Hole Size Comparison.
Deutsche Welle: Wann wird die Zeitumstellung in der EU endlich abgeschafft? “Der EU-Verkehrsausschuss stimmt am Montag (04.03.) über ein mögliches Ende der Zeitumstellung ab, über die seit 200 Jahren gestritten wird. Benjamin Franklin hatte sie 1784 vorgeschlagen – allerdings nur zum Spaß!”
“Zwar stimmt der Verkehrsausschuss im Europaparlament am Montag, 4. März 2019, über ein mögliches Ende der Zeitumstellung ab, aber damit beginnt erst der langwierige Abstimmungsprozess in der EU.
Nach den Ausschüssen berät das Plenum, und nur wenn am Ende alle EU-Mitgliedsstaaten zustimmen, kann die Zeitumstellung in der EU abgeschafft werden. Aber das kann dauern. Als Datum für die letztmalige Zeitumstellung ist das Jahr 2021 im Gespräch. Ein großes Problem ist die bislang fehlende Abstimmung zwischen den Mitgliedstaaten. Gemäß dem Vorschlag der EU-Kommission würde jedes Land für sich entscheiden, in welcher Zeitzone es dauerhaft bleibt.”
For the past few days I’ve been listening to the most recent episodes of the Brady Heywood Podcast about the Apollo 13 mission:
These five episodes apparently were almost a year in the making, but they are excellent. Of course I knew the story of Apollo 13 beforehand, and I’ve read books about it and watched the movie (starring Tom Hanks as Jim Lovell) several times, but this recount was very gripping and and had the right balance between the technical aspects and the human side for my taste. Highly recommended!
I think I found them recommended on Ask MetaFilter a little while ago, but cannot seem to find the link any more, sorry.
NPR: How Do You Preserve History On The Moon?
“Historic preservationists are hoping that the upcoming 50th anniversary of the Apollo 11 moon landing this summer will persuade the United Nations to do something to protect Neil Armstrong’s footprints in the lunar dust.
Some of his boot marks are still up there, after all, along with other precious artifacts from humanity’s first steps on another world. Armstrong and Buzz Aldrin left behind tools and science equipment, a plaque that read, “We came in peace for all mankind” and the U.S. flag, which has likely been bleached white by five decades of harsh ultraviolet light.
Other than a dusting of lunar soil or the random micrometeorite impact, Tranquility Base has been an untouched time capsule since the astronauts departed — though that could change as more nations and even commercial companies start to explore the moon.
“There has never been historic preservation off our planet. It’s a really difficult subject,” says Michelle Hanlon, a law professor and space law expert at the University of Mississippi who co-founded For All Moonkind, a nonprofit group devoted to protecting historic sites in space.”
The Washington Post: Opportunity, NASA’s record-setting Mars rover, is declared dead after 15 years. “A eulogy for the spacecraft that transformed our understanding of the Red Planet.” By Sarah Kaplan.
“Opportunity’s historic mission, which uncovered signs of Mars’s watery past and transformed our understanding of the Red Planet, has finally come to an end after 15 years, NASA declared Wednesday.
The cause was system failure precipitated by power loss during a catastrophic, planetwide dust storm that engulfed the Mars rover last summer.
“It’s going to be very sad to say goodbye,” said John Callas, the mission’s project manager. “But at the same time, we’ve got to remember this has been 15 years of incredible adventure.”
Opportunity’s mission was planned to last just 90 days, but it worked for 5,000 Martian “sols” (which are about 39 minutes longer than an Earth day) and traversed more than 28 treacherous miles — two records for NASA.”
Link via MetaFilter.