Scientists have long puzzled over a discrepancy in how fast the universe is expanding, but new, sharper data from the James Webb Space Telescope may finally be solving the mystery. By refining ...

WASHINGTON — The Hubble Space Telescope marked its 35th anniversary ... the moth-like planetary nebula NGC 2899, a spiral galaxy labeled NGC 5335 and a small portion of the Rosette Nebula ...

For the past decade, scientists have been trying to get to the bottom of what seemed like a major inconsistency in the ...

WASHINGTON — The Hubble Space Telescope marked its 35th anniversary this week and ... the moth-like planetary nebula NGC 2899, a spiral galaxy labeled NGC 5335 and a small portion of the Rosette ...