Apollo 7, crewed by Walter Schirra Jr., Donn Eisele, and Walter Cunningham, represented the first manned American spaceflight 21 months after the Apollo 1 fatal accident. Launching on October 11, 1968 ...

Albireo (Beta Cygni), situated in the constellation Cygnus, is highlighted as a distinguished double star system highly regarded by northern observers. The system consists of two components, Beta1 ...

This tour is currently under development. Eclipse Traveler is designing an exclusive journey to place you in an optimal viewing location for this incredible celestial event.

All the major planets are on view this month. Venus has a fine evening conjunction with Saturn and Jupiter is high in Taurus. Uranus and Neptune are binocular targets, while Mars reaches opposition.

Step outside tonight in the early evening, when Sagittarius lies above the southwestern horizon. Globular cluster M22 shines brightly at magnitude 5.1, readily observable with binoculars or any size ...

On Oct. 8, 1873, Ejnar Hertzsprung was born near Copenhagen, Denmark. His father had studied astronomy and worked in finance, and Hertzsprung himself showed interest in astronomy and math, but pursued ...

Karl Schwarzschild was born Oct. 9, 1873 – just one day after his famous collaborator Ejnar Hertzsprung – and grew up in a Jewish family in Germany. Schwarzschild was considered a child prodigy, ...

NASA announced Wednesday that its Perseverance rover discovered what scientists are calling a “potential biosignature” in a rock on Mars last year. This signature, which may have a biological origin ...

The White House proposed a 24% budget cut to NASA for fiscal year 2026, a significant departure from historical precedent, with a 47% reduction specifically targeting science programs. Congress, ...

Looking for a sky event this week? Check out our full Sky This Week column. 1 Ceres is passing close to the 5th-magnitude star Phi 2 (φ 2) Ceti this evening. Viewing will be best about two hours after ...

Before you set your telescope up next time, read through the four following items. I hope one or more of them will help you get more from your session. You’ve placed your solar filter on the front of ...

Discover the best of Sydney and its breathtaking surroundings on this 7-day tour, perfectly timed for the total solar eclipse on July 22, 2028. Your journey begins with a deep dive into Australia’s ...