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Astronomy
August 4, 2025
Aug. 4, 1972: Extreme space weather detonates mines
Today in the history of astronomy, a solar storm does a lot more than just put on an auroral show.
Astronomy
August 4, 2025
Today in the History of Astronomy
Today in the History of Astronomy
Astronomy
August 3, 2025
Aug 3, 1596: David Fabricius discovers Mira
Today in the history of astronomy, the first record of a periodic variable star is made.
Astronomy
August 2, 2025
Aug 2, 1133: A total eclipse is misremembered
Today in the history of astronomy, an eclipse in Scotland is associated with the death of King Henry I – over two years later.
Astronomy
August 1, 2025
‘Skyfall’ concept could deploy a helicopter swarm on Mars
The Skyfall concept reimagines Mars landings, deploying a six-helicopter swarm to autonomously scout for resources and future human outposts...
Astronomy
August 1, 2025
Michael’s Miscellany: The Observer’s Eye
Three things every amateur astronomer should take into account.
Astronomy
August 1, 2025
Aug 1, 1818: The birth of Maria Mitchell
Today in the history of astronomy, America’s first female astronomer is born.
Astronomy
August 1, 2025
August 2025: What's in the sky this month?
August brings Saturn and Neptune together, offers two shadow transits of Titan, and sees a conjunction of Venus and Jupiter.
Astronomy
August 1, 2025
The Sky This Week from Aug. 1 to 8: A conjunction of Saturn and Neptune
Neptune and Saturn appear together in a telescope as Mars passes a star in Virgo and Titan’s shadow transits Saturn in the sky this week.
Astronomy
July 31, 2025
Michael’s Miscellany: 10 More Cool Things About the Moon
Because 20 facts about our natural satellite weren’t enough, here are 10 more.
Astronomy
July 31, 2025
July 31, 1964: Ranger 7 returns the first close pictures of the Moon
Today in the history of astronomy, the U.S. scores a win in the Space Race.
Astronomy
July 31, 2025
Observe these great star clusters from the New General Catalogue
There's so much more to see than the famous Messier Catalog. Here's a list of gorgeous NGC star clusters to observe on the next clear night.
Astronomy
July 31, 2025
JWST spies the aftermath of Cas A, a famous supernova
The penetrating eye of NASA's spaceborne infrared observatory brings Cassiopeia A’s surroundings into focus in this detailed image.
Astronomy
July 30, 2025
Watch a heartwarming Patrick Moore film with Brian May online
Join astronomer Patrick Moore and Queen's Brian May as they observe the 2004 transit of Venus in a newly released film. Watch the movie now!
Astronomy
July 30, 2025
Signs of life on K2-18 b revisited in new NASA study
Signs of life on K2-18 b are revisited as a new NASA-led study finds no conclusive evidence for dimethyl sulfide, tempering earlier reports.
Astronomy
July 30, 2025
Dwingeloo 1 is a barred spiral galaxy in Cassiopeia
Dwingeloo 1, a barred spiral galaxy about 10 million light-years away, is so obscured, it wasn't discovered until 1994.
Astronomy
July 30, 2025
Explore the wonders of the constellation Andromeda
There's so much more to Andromeda than its eponymous galaxy. Here's a list of other targets to observe in the Princess.
Astronomy
July 30, 2025
July 30, 1610: Galileo sees Saturn’s rings
Today in the history of astronomy, Galileo is confused by his observations of Saturn.
Astronomy
July 29, 2025
What is astronomical image contrast and how to boost it
All observers want to maximize contrast in their photos and observations. Here's how to do it.
Astronomy
July 29, 2025
July's best new astronomy products
Astronomy magazine's July new products recs: Vixen's Mobile Porta Mount, the Seestar S30, and Keith Cooper's book on exoplanets in the media...
Astronomy
July 29, 2025
July 29, 1958: NASA is founded
Today in the history of astronomy, President Eisenhower signs the National Aeronautics and Space Act.
Astronomy
July 28, 2025
Observe the sky's colorful stars
Stars are more colorful than you think! Patience will reveal them; head outside tonight to see summer’s multi-hued stars.
Astronomy
July 28, 2025
July 28, 1851: The first photo of a total eclipse
Today in the history of astronomy, a Prussian photographer captures totality.
Astronomy
July 27, 2025
July 27, 2005: NASA grounds the space shuttles
Today in the history of astronomy, foam falling from Discovery raises alarms.
Astronomy
July 26, 2025
July 26, 2000: Comet LINEAR disintegrates
Today in the history of astronomy, a weird and wonderful comet breaks up.
Astronomy
July 25, 2025
Pazmino’s Cluster: Exploring Stock 23 in Camelopardalis
Pazmino’s Cluster, or Stock 23, is a small open cluster in Camelopardalis that shines as a hidden gem for binoculars and telescopes.
Astronomy
July 25, 2025
July 25, 1920: The birth of Chushiro Hayashi
Today in the history of astronomy, a future physics prizewinner is born.
Astronomy
July 24, 2025
The basics of astroimaging filters
This beginner's guide to filters will help you choose the correct tool to take your astrophotos to the next level.
Astronomy
July 24, 2025
July 24, 1969: Apollo 11 returns home
Today in the history of astronomy, the first people to walk on the Moon splashdown back on Earth.
Astronomy
July 23, 2025
Maffei 1 and 2: Faint galaxies first discovered in 1967
Maffei 1 and 2 are faint, dust-obscured galaxies near the Milky Way—discovered in 1967 and challenging targets for deep-sky observers.
Astronomy
July 23, 2025
The quest for the ultimate catalog of dark nebulae
One amateur astronomer is on a quest to identify every object in the catalog of Lynds’ dark nebulae. Tag along for the journey!
Astronomy
July 23, 2025
July 23, 1999: Chandra X-Ray Observatory launches
Today in the history of astronomy, NASA’s flagship for X-ray astronomy heads for space.
Astronomy
July 22, 2025
The Soul Nebula, in Cassiopeia, is a great astroimaging target
Explore the Soul Nebula (IC 1848), a star-forming region in Cassiopeia. Learn its clusters and why it's a favorite for astrophotographers.
Astronomy
July 22, 2025
July 22, 1826: Fr. Giuseppe Piazzi dies
Today in the history of astronomy, the man who discovered Ceres passes away.
Astronomy
July 21, 2025
The Heart Nebula: A large stellar nursery in the Milky Way
The Heart Nebula, cataloged as IC 1805 and also sometimes called the Running Dog Nebula, is a large star-forming region in our galaxy.
Astronomy
July 21, 2025
July 21, 1998: Alan Shepard dies
Today in the history of astronomy, America’s first man in space passes away.
Astronomy
July 20, 2025
July 20, 1976: Viking 1 lands on Mars
Today in the history of astronomy, a spacecraft makes the first successful Mars landing.
Astronomy
July 19, 2025
July 19, 418: A solar eclipse/comet combo
Today in the history of astronomy, an eclipse isn’t the only stunning thing in the sky.
Astronomy
July 18, 2025
Axiom Mission 4 returns to Earth after historic ISS stay
Axiom Mission 4 returns to Earth after 18 days aboard the ISS, marking historic firsts for India, Poland, and Hungary in human spaceflight.
Astronomy
July 18, 2025
Purgathofer-Weinberger 1: The second-largest planetary nebula
Purgathofer-Weinberger 1, a faint planetary nebula about 1,300 light-years away, is the second-largest planetary nebula in our sky.
Astronomy
July 18, 2025
July 18, 1915: The birth of John Glenn
Today in the history of astronomy, the first American in orbit is born.
Astronomy
July 18, 2025
The Sky This Week from July 18 to 25: Have you seen our interstellar visitor?
As the Moon reaches New, advanced observers can try photographing 3I/ATLAS while everyone can enjoy nebulae and more in the sky this week.
Astronomy
July 17, 2025
Jones-Emberson 1: A Planetary Nebula in Lynx discovered in 1939
Jones-Emberson 1, sometimes called the Headphone Nebula due to its distinct shape, is a great challenge target for backyard photographers.
Astronomy
July 17, 2025
Jones-Emberson 1: A Planetary Nebula in Lynx discovered in 1939
Jones-Emberson 1, sometimes called the Headphone Nebula due to its distinct shape, is a great challenge target for backyard photographers.
Astronomy
July 17, 2025
Celebrate International Moon Day with Starmus
Celebrate International Moon Day with Starmus by sharing your best Moon images. Submit via Instagram DM for a chance to be featured!
Astronomy
July 17, 2025
What we know so far about 3I/ATLAS, the interstellar visitor
New findings about interstellar comet 3I/ATLAS reveal its surprising size, possible thick disk origin, and what makes it unlike any other IS...
Astronomy
July 17, 2025
50 years since the 'Handshake in Space': The legacy of Apollo-Soyuz
The Apollo-Soyuz mission occurred 50 years ago this week, as Americans and Soviets came together for the first time in space.
Astronomy
July 17, 2025
July 17, 1975: The Apollo-Soyuz Test Project
Today in the history of astronomy, an astronaut and a cosmonaut shake hands in space.
Astronomy
July 16, 2025
Astronomers detect the most massive black hole merger ever
Astronomers have detected the most massive black hole merger ever observed, challenging stellar evolution and black hole formation theories.
Astronomy
July 16, 2025