NASA scientist reveals Hubble's biggest discoveries

Hubble proved cosmic expansion is accelerating.

Dr. Wiseman explains how Hubble measured cosmic expansion and helped scientists discover dark energy accelerating the universe.

How Hubble Discovered Dark Energy

Hubble and Webb see two different universes.

Hubble and James Webb capture different wavelengths of light, combining ultraviolet and infrared data to analyze exoplanet atmospheres.

Why NASA Needs Both Hubble and Webb

Every dot in this photo is an entire galaxy.

Dr. Wiseman breaks down the Ultra Deep Field photo and explains how looking across space serves as a literal time machine.

The Deepest Look Into Cosmic History

Astronaut servicing missions combined with ground-based engineering fixes keep Hubble operating at peak performance decades past its expected lifespan.

How Hubble Survived 35 Years in Orbit

[03:28] How Hubble Discovered Dark Energy
[04:21] Why NASA Needs Both Hubble and Webb
[06:31] The Deepest Look Into Cosmic History
[07:41] How Hubble Survived 35 Years in Orbit

NASA scientist reveals Hubble's biggest discoveries

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