I am very pleased to write that the Nobel Prize for physics this year to three astronomers for their discovery of dark energy — a still-mysterious phenomenon that is causing the expansion of the Universe to accelerate. Artcam pro 9 software. Saul Perlmutter, Brian Schmidt, and Adam Riess are sharing the award. Back in 1998, Saul and Brian headed up two rival teams trying to observe very distant exploding stars, hoping they would yield better numbers for how fast the Universe expanded. Adam was on Brian’s team, and led the work. To everyone’s surprise, the data indicated the Universe was not just expanding, but expanding faster every day — it was accelerating. Something must be pushing on the very fabric of space itself, causing it to expand ever-faster.

We don’t now what it is, exactly, but we call it dark energy, and over the past 12 years, more and more observations have piled up showing that this stuff really is out there. If you want background info on all this, see the Related Posts section below; there are plenty of links to articles I’ve written on this topic. The folks at Hubble also and what it means for the Universe. This is very exciting for lots of reasons. First, of course, it’s nice to see an astronomical topic win what is considered the top prize in science.

Second, because it would (not that this was all that difficult to see coming!). And third, for personal reasons, because I know all three of these men. I worked with Brian and Adam back in the day; the project Brian headed up to observe distant supernovae was part of a project using Hubble to observe supernovae in general, and I worked on a different aspect of it. Adam and I were both grad students at the time; after I got my PhD I went to work on a different Hubble project, and Adam stayed with the team, cracked the supernova code, and now has a Nobel Prize. I suspect that was the right move for him. Saul, too, is an acquaintance; I first met him, and he was also in California a couple of years ago.

All three of these men have worked for a long, long time on this problem, essentially devoting their lives to it. It’s very, very nice to see that pay off. It’s richly deserved!

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Related posts: – – – – – – –. Note that on the same day, the European Space Agency selected a new mission, Euclid, to be launched in 2019 to address exactly the question raised by this discovery: what is the nature of “dark energy” The two events are disconnected, but it’s fascinating to see them happening on the same day. Actually I wonder how ESA could have justified not selecting Euclid on the day the nobel prize is awared to the discovery of the re-acceleration of the Universe’s expansion. If you want to know a bit more on Euclid, here is the link to ESA’s press release. @Orozco Thanks.

However, Hubble and others did realise it wasn’t just expanding, but in fact the universe was accelerating. So how is this new discovery really new? Or do I have it completely wrong, that Hubble et al.

Discovered expansion but not acceleration of the expansion? This is what I get from NASA’s website: Hubble, the telescope, also helped discover that not only is the universe expanding, the expansion is accelerating. The mysterious force causing this acceleration is dubbed dark energy.

Is this comment related to the three people being awarded the NP or did other people already have this figured out earlier? Again, if the latter, what is new in the paper who are to achieve this high recognition?