All the tools for measuring it in the local, recent Universe give fairly consistent results, around 72 to 74 kilometers per ...

Observations don’t match the predictions of the standard model—and it’s not just a fluke.

One issue is that when scientists calculate what the Hubble constant should be, it doesn’t quite match observations of the ...

Footage from NASA/ESA Hubble Space Telescope that celebrates 35 years in space. Images of Mars, planetary nebula NGC 2899, ...

The cosmological constant is the mathematical description of the energy that drives the ever-accelerating expansion of the ...

A major international effort has produced an ultra-precise measurement of the Universe’s expansion rate, confirming it’s ...

This shimmering region of star-formation, a close-up of the Trifid Nebula about 5,000 light-years from Earth, was captured in ...

Hubble images never fail to amaze.

Since its launch in April 1990, the Hubble Space Telescope has been an invaluable tool for astronomers in unraveling the mysteries of the universe.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A dramatic rise in the number of internet satellites ...

A NASA team using the Hubble Space Telescope found an object in space never recorded before, nicknamed “Cloud-9.” Cloud-9 is a starless, gas-rich, dark-matter cloud considered a “relic” or remnant of ...

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