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Sagitta the Arrow lies inside the Summer Triangle
Sagitta the Arrow is a dim constellation that lies inside the Summer Triangle. It contains one Messier object, a small globular cluster.
August 20, 2026
Mission to save Swift spacecraft fails, will crash back to Earth
NASA said on August 19, 2026, the mission to save the Swift spacecraft will not work after attitude control issues. Swift will crash back to Earth this year.
August 19, 2026
See the August 12 solar eclipse from the moon’s perspective
Korean's lunar orbiter, Danuri, captured a view of the solar eclipse on August 12, 2026. This unique perspective includes the moon's limb in the foreground.
August 19, 2026
Super-Earths might be solid deep on the inside
Super-Earths might be solid in their deep insides, a new study says. Minerals might take unusual forms and remain solid despite the intense heat and pressure.
August 19, 2026
The Great Rift is a dark swath in the Milky Way
The Great Rift or Dark Rift is a darkened swath of the Milky Way where new stars are forming. It's best seen from a rural location away from light pollution.
August 19, 2026
Is Ophiuchus the 13th constellation of the zodiac?
The sun passes through Ophiuchus for about 2 weeks every year, so why isn’t this constellation considered the zodiac’s 13th sign?
August 19, 2026
1st ultra-faint Milky Way satellite galaxy found by Rubin
The Vera C. Rubin Observatory has only just begun its survey, yet it has already discovered its first ultra-faint Milky Way satellite, Aquarius IV.
August 18, 2026
Give me 5 minutes and I’ll give you Saturn
We're now in the best months for viewing Saturn in 2026. It'll be at it's best around October 4 when it's closest to Earth and visible all night.
August 18, 2026
A moon for Mars! Asaph Hall finds Phobos 149 years ago
On this date in 1877, astronomer Asaph Hall discovered a moon for Mars: Phobos, the larger of 2 moons. He discovered the other moon, Deimos, later that year.
August 17, 2026
Were these polygonal cracks on Venus once on a seafloor?
Sprawling, huge cracks on Venus have long puzzled scientists. A new study suggests the polygon shapes formed from drying mud on an ancient seafloor.
August 15, 2026
