These instruments, like the Hubble Space Telescope, reported a value of around 73 km/s/Mpc. The difference between these ...

The Hubble Space Telescope captured imagery of Jupiter and its Great Red Spot in 2023 and 2024. Credit: NASA, ESA, J.

Encountering Neptune in 1989, NASA’s Voyager mission completed humankind’s first close-up exploration of the four giant outer ...

"The discrepancy between the observed expansion rate of the universe and the predictions of the standard model suggests that ...

Hubble and its fellow observatories give us an unprecedented, crystal-clear look at the far reaches of the cosmos. Explore these orbiting pioneers and learn what they've discovered. 3 min read The ...

The findings offer a crucial cross-check for previous Hubble Space Telescope measurements of the universe's mysterious ...

It's 30 years ago to the day that the Hubble telescope was launched - and to celebrate its birthday, the veteran observatory has produced another astonishing image of the cosmos. This one is of a ...

Fresh corroboration of the perplexing observation that the universe is expanding more rapidly than expected has scientists pondering the cause — ...

But 34 years after its launch in 1990, the telescope’s ‘life’ is expected to come to an end over the next decade, as its parts fail, sending it crashing back to Earth. By the mid-to-late 2030s, Hubble ...

The Hubble law implies that the universe is expanding. NASA's Hubble Space Telescope, launched into low Earth orbit in 1990, has been a vital instrument for exploring the universe for over three ...