Will the Universe end in a Big Rip? We need more data to answer that, and the Nancy Grace Roman Space Telescope will give us heaps of new data.
NASA’s Nancy Gracy Roman Space Telescope won’t launch until 2027, and it won’t start operating until some time after that. But that isn’t stopping excited scientists from dreaming about their new toy and all it will do. Who can blame them?
“While this survey is designed to explore cosmic acceleration, it will also offer clues about many other tantalizing mysteries,” said Wang. “It will help us understand the first generation of galaxies, allow us to map dark matter, and even reveal information about structures that are much closer to home, right in our local group of galaxies.”Roman’s HLSS relates to Universal expansion, Dark Energy, and Einstein’s Theory of General Relativity .
Wouldn’t it be nice if the interminable guessing over the fate of the Universe was over? Wouldn’t it be fun to know how the Universe will end? It’d be as much fun as knowing what triggered its beginning. Imagine how popular you’d be at cocktail parties. If the cause is a new energy component, is its energy density constant in space and time, or has it evolved over the history of the universe?
Cosmologists have already mapped the large-scale structure, but the Roman Telescope’s HLSS will take that mapping a step further. The HLSS will tell us the distances to about two million galaxies from when the Universe was only two to three billion years old. That’s never been done before and will be new data.
That last sentence describes where we’re at now. The Universe is expanding, and the expansion is accelerating. That shouldn’t be the case because the gravity of all the matter in the Universe should be a drag on that expansion. The acceleration means that Einstein’s theory of gravity isn’t exactly correct. Or it means that we need to add a new energy component to the Universe: Dark Energy.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Peacemaker? Roman Abramovich left off US sanctions listRussian oligarch Roman Abramovich was excluded from sanctions the United States slapped on Russia, its leader, and businesses after Ukraine's president claimed the billionaire soccer team owner may be an important go-between during peace negotiations, a report claimed Thursday.
続きを読む »
Asteroid Ryugu Might Actually Be a Dead Comet - Universe TodayAsteroid Ryugu might not be an asteroid at all. It might be a former comet. Not only that, but so might asteroid Bennu. Our samples of both should clarify.
続きを読む »
Morbius Movie First Reactions: 'As Bad as You Were Expecting''As bad as you were expecting': Morbius first social reactions criticize the '2005 plot' of the Sony Spider-Man spinoff and 'the worst post credits scenes you've EVER seen.'
続きを読む »
Gobsmacking New Simulation Shows How Lights Turned on in Our UniverseThere was a time when our Universe was nothing but an opaque, lightless sea of swirling gas.
続きを読む »