May 26, 2015: The Rosetta spacecraft is still orbiting comet 67P/Churyumov-Gerasimenko while it now approaches the Sun. Six months ago Rosetta made history by delivering its Philae lander onto a comet’s surface—something no other space mission has done before.
This video covers the mission’s highlights so far: from its launch in 2004; its journey across the solar system and waking up after deep space hibernation ten years later, its arrival at the selection of a landing site and Philae’s unexpected multiple landings on the comet. It also reviews what we have learnt about the comet to this point.
Credit: European Space Agency (ESA)
#ESA #Space #Astronomy #Science #Comet #Rosetta #Spacecraft
#Philae #Lander #Comet67P #Churyumov #Gerasimenko #Cosmos #Universe #Navcam #DLR
The Asteroid Impact Mission (AIM) is a candidate mission currently undergoing preliminary design work. Launched in October 2020, AIM would travel to a binary asteroid system—the paired Didymos asteroids, which will come a comparatively close 11 million km to Earth in 2022. The 800 m-diameter main body is orbited by a 170 m moon, informally called ‘Didymoon’.
This smaller body is AIM’s focus: the spacecraft would perform high-resolution visual, thermal and radar mapping of the moon to build detailed maps of its surface and interior structure.
The main AIM spacecraft is planned to carry at least three smaller spacecraft—the Mascot-2 asteroid lander, being provided by DLR (Mascot-1 is already flying on JAXA’s Hayabusa-2), as well as two or more CubeSats. AIM would test optical communications and inter-satellite links in deep space, essential technology for future exploration.
If approved, AIM would also be Europe’s contribution to the larger Asteroid Impact & Deflection Assessment mission: AIDA. In late 2022, the NASA-led part of AIDA will arrive: the Double Asteroid Redirection Test, or DART, probe will approach the binary system—then crash straight into the asteroid moon at about 6 km/s.
AIM is intended to be watching closely as DART hits Didymoon. In the aftermath, it will perform detailed before-and-after comparisons on the structure of the body itself, as well as its orbit, to characterise DART’s kinetic impact and its consequences.
Release Date: May 21, 2015
#ESA #Space #Astronomy #Science #Asteroid #Spacecraft #AIM #Didymos #Didymoon #CubeSat #DART #Deflection #DLR
Woman shoots herself in the head while trying to take a selfie
"What a crazy day. I don’t think there has ever been a more bittersweet feeling than this one. We have won the Monaco Grand Prix and we have lost the Monaco Grand Prix all at the same time. First of all, we must apologise to Lewis. We win and we lose together and what I am proud of in this team is that we take collective responsibility. But this is a day when we simply have to say sorry to our driver, because our mistake cost him the victory here. What happened? In simple terms, we got our numbers wrong. We thought we had the gap for Lewis to take fresh tyres and come back out in the lead behind the Safety Car, ahead of Nico and covering off any risk of another competitor taking fresh tyres. But the calculation was incorrect and he came out in third place. It was our decision to call him in and our mistake, pure and simple; in these situations, a driver trusts his team. Lewis had driven flawlessly until then and really delivered a perfect weekend, with a stunning pole lap and a masterful race. There’s nothing more to say other than to highlight the grace with which he handled the situation; he was a leader and a true sportsman this afternoon. As for Nico, he didn’t put a foot wrong all day, and it would be wrong if we didn’t take the time to recognise his achievement: a third consecutive win in Monaco is something only three other drivers in history have achieved before. It is a very special moment indeed and one for him to savour. He didn’t have the pace of Lewis today but, in this sport, you take the victories any way they come. This, too, is motor racing. We now need to stay calm and analyse how we made the mistake this afternoon. We will be harshly self-critical behind closed doors and this experience will make us a better and a stronger team in the races ahead. There is still a very long way to go in this championship and today showed that we have the performance in our car to do the job this year."
- TorsbergsskolanElektriker, 2005
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