Скачать или смотреть The Biggest Mystery in the Universe: What Is Dark Energy?

1998. Astronomers are observing distant Type Ia supernovae — exploding stars that shine with almost identical brightness.

They’re like standard candles in the Universe: their light lets us precisely measure distances to galaxies.

Scientists expected gravity to slow down the Universe’s expansion after the Big Bang.

But the data showed the opposite: the supernovae appeared dimmer than they should have been.
They’re farther away.
The expansion isn’t slowing — it’s accelerating! 😲

Two independent teams of astronomers reached the same conclusion: there’s a mysterious repulsive force at work.

They called it dark energy.

In 2011, Saul Perlmutter, Brian Schmidt, and Adam Riess received the Nobel Prize in Physics for this discovery.

Since then, it’s been confirmed by countless observations, but the nature of dark energy remains one of the greatest mysteries of the cosmos.

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