Astronomy Tonight

On May 11th in astronomical history, one of the most significant events occurred in 1997: the chess match between IBM's Deep Blue supercomputer and world chess champion Garry Kasparov concluded, with ...

11 Touko 20251min

On May 10th in astronomical history, one of the most significant events occurred in 1869 when the Golden Spike ceremony marked the completion of the First Transcontinental Railroad in the United State...

10 Touko 20252min

On May 9th, 1962, a remarkable astronomical event occurred that left scientists and stargazers alike in awe. On this day, the planet Mars occulted (passed in front of) the star Epsilon Geminorum, crea...

9 Touko 20252min

On May 8th in the world of astronomy, we celebrate the anniversary of a fascinating event that occurred back in 1984. On this day, astronomers at the Kitt Peak National Observatory in Arizona made a g...

8 Touko 20252min

On May 7th in astronomical history, one of the most significant events occurred in 1992 when astronomers discovered the first exoplanet orbiting a pulsar. This groundbreaking discovery was made by Ale...

7 Touko 20252min

On May 5th in the world of astronomy, one of the most significant events occurred in 1961: the first American human spaceflight. This mission, known as Mercury-Redstone 3 or Freedom 7, launched astron...

5 Touko 20252min

On May 4th in the realm of astronomy, one of the most exciting events occurred in 1989 when NASA launched the Magellan spacecraft to Venus aboard the Space Shuttle Atlantis. This mission was a game-ch...

4 Touko 20252min

On May 3rd in the field of astronomy, one of the most significant events occurred in 1715: A total solar eclipse that was visible across a large swath of England, including London. This eclipse is par...

3 Touko 20252min