Astronomy

November 24, 2025

Nov. 24, 1990: Keck I sees first light

Today in the history of astronomy, the incomplete Keck telescope still achieves a successful image.

Astronomy

November 23, 2025

Nov. 23, 1221: The birth of Alfonso the Wise

Today in the history of astronomy, the Spanish king who would provide the basis for European astronomy is born.

Astronomy

November 22, 2025

Nov. 22, 1942: The birth of Guion Bluford

Today in the history of astronomy, the first African-American in space is born.

Astronomy

November 21, 2025

The Sombrero Galaxy tips its hat to JWST

The aptly named Sombrero Galaxy (M104) reveals its secrets to the James Webb Space Telescope's probing infrared eye in these new images.

Astronomy

November 21, 2025

Michael’s Miscellany: Observing Lists

Know what you’re going to look at before you set up your scope.

Astronomy

November 21, 2025

Nov. 21, 1993: The death of Bruno Rossi

Today in the history of astronomy, an astrophysics pioneer passes away.

Astronomy

November 21, 2025

Nov. 21, 1993: The death of Bruno Rossi

Today in the history of astronomy, an astrophysics pioneer passes away.

Astronomy

November 21, 2025

The Sky This Week from Nov. 21 to 28: Uranus at opposition

An ice giant remains visible all night as Mercury and Venus meet and Saturn stands still in the sky this week.

Astronomy

November 20, 2025

How to image faint comets

These tips from an imaging expert on how to shoot and process faint comets will raise your number of astroimaging targets dramatically.

Astronomy

November 20, 2025

Michael’s Miscellany: Observe the Cocoon Nebula

This object glows faintly, but a small scope will let you see it.

Astronomy

November 20, 2025

Nov. 20, 1889: The birth of Edwin Hubble

Today in the history of astronomy, the astronomer who would both expand our universe and help us organize the cosmos is born.

Astronomy

November 20, 2025

Telescopes and Equipment

Whether you're looking for a new telescope, eyepiece, binoculars, or anything else you need to up your observing game, we've got you covered...

Astronomy

November 20, 2025

Upcoming Events

Learn about upcoming celestial events that you can observe, such as eclipses, meteor showers, comets, aurorae, conjunctions, and more.

Astronomy

November 20, 2025

Deep-Sky Objects

Deep-sky objects are celestial objects that exist outside our solar system. Three major types of deep-sky objects are nebulae, star clusters...

Astronomy

November 20, 2025

Astrophotography

Photographing the night sky can be an intimidating task. But by following a few simple tips, you can start capturing your own stunning astro...

Astronomy

November 19, 2025

Discover your key to the universe tomorrow at Astronomy Unlocked

Join us tomorrow, Nov. 20, for Astronomy Unlocked, a virtual event focused on choosing your best telescope, complete with insight and tips f...

Astronomy

November 19, 2025

Researchers discover Earth’s largest modern impact crater

The Jinlin crater is large, young, and remarkably well preserved.

Astronomy

November 19, 2025

Today in the History of Astronomy

Today in the History of Astronomy

Astronomy

November 19, 2025

Nov. 19, 1969: Apollo 12 lands on the Moon

Today in the history of astronomy, Pete Conrad and Alan Bean become the third and fourth people on the Moon.

Astronomy

November 18, 2025

The new trailer for 'Project Hail Mary' just dropped

Opening in theaters and IMAX March 20, 2026, Project Hail Mary, starring Ryan Gosling, just dropped its newest trailer.

Astronomy

November 18, 2025

Nov. 18, 1989: The Cosmic Background Explorer launches

Today in the history of astronomy, the COBE satellite, which will reveal the early universe, begins its mission.

Astronomy

November 17, 2025

This Week in Astronomy with Dave Eicher: Uranus at opposition

If you’ve never seen the seventh planet, now’s the time to find it, as it reaches opposition and is visible all night.

Astronomy

November 17, 2025

Nov. 17, 1966: A phenomenal Leonid meteor storm

Today in the history of astronomy, one of the greatest meteor storms in recorded history rains down on North America.

Astronomy

November 16, 2025

Nov. 16, 1974: Arecibo sends a message

Today in the history of astronomy, a group of scientists crafts a broadcast to extraterrestrials.

Astronomy

November 15, 2025

Nov. 15, 1988: The Buran orbiter launches

Today in the history of astronomy, the Soviet answer to the space shuttle makes its only flight.

Astronomy

November 14, 2025

Michael’s Miscellany: Another reason to hate light pollution

This problem can be solved pretty easily with no negative impact.

Astronomy

November 14, 2025

Nov. 14, 2012: NASA announces an extended mission for Kepler

Today in the history of astronomy, Kepler completes its primary mission, but continues observing.

Astronomy

November 14, 2025

The Sky This Week from Nov. 14 to 21: The Leonids peak

Meteors blaze overhead as moons race across Jupiter and Iapetus reaches western elongation at Saturn in the sky this week.

Astronomy

November 13, 2025

Nov. 13, 1971: Mariner 9 orbits Mars

Today in the history of astronomy, the first spacecraft to orbit another planet begins to circle Mars.

Astronomy

November 12, 2025

You might see an aurora tonight

Conditions on the Sun could produce the northern lights for much of the U.S.

Astronomy

November 12, 2025

Astronomers see a massive stellar explosion

This discovery marks the first confirmed sighting of a coronal mass ejection on another star.

Astronomy

November 12, 2025

Nov. 12, 2014: The Philae lander touches down on a comet

Today in the history of astronomy, a lander descends to Comet 67P/Churyumov-Gerasimenko, in a space exploration first.

Astronomy

November 12, 2025

Nov. 12, 2014: The Philae lander touches down on a comet

Today in the history of astronomy, a lander descends to Comet 67P/Churyumov-Gerasimenko, in a space exploration first.

Astronomy

November 11, 2025

Nov. 11, 1875: The birth of V.M. Slipher

Today in the history of astronomy, a key figure in our understanding of the expanding universe is born.

Astronomy

November 10, 2025

REVIEW: Player One Astronomy's Zeus camera

Player One Astronomy is fast becoming a top choice among imagers — and their Zeus mono camera is a great example of why.

Astronomy

November 10, 2025

Comet Lemmon is still visible

If you haven’t seen it yet, head outside with binoculars.

Astronomy

November 10, 2025

This Week in Astronomy with Dave Eicher: The Leonid meteor shower

This shower will rain shooting stars, and the Moon won’t interfere.

Astronomy

November 10, 2025

Cosmic beliefs may have driven earliest Maya monument, study suggests

A new paper argues the oldest and largest Maya monument, Aguada Fénix, was designed as a ‘cosmogram’ aligned with the sacred calendar, sugge...

Astronomy

November 10, 2025

Nov. 10, 1861: The birth of Robert Innes

Today in the history of astronomy, Proxima Centauri’s discoverer is born.

Astronomy

November 9, 2025

Nov. 9, 1939: The birth of Carl Sagan

Today in the history of astronomy, the great populizer of astronomy is born.

Astronomy

November 8, 2025

Nov. 8, 1656: The birth of Edmond Halley

Today in the history of astronomy, the man for whom Halley’s Comet was named is born.

Astronomy

November 7, 2025

Nov. 7, 1882: A Great Comet transforms astrophotography

Today in the history of astronomy, David Gill photographs the Great Comet of 1882, revolutionizing star mapping.

Astronomy

November 6, 2025

Nov. 6, 1919: Einstein is right

Today in the history of astronomy, results from the eclipse of 1919 are announced, supporting Albert Einstein’s theory of general relativity...

Astronomy

November 5, 2025

Nov. 5, 2006: Mars Global Surveyor goes quiet

Today in the history of astronomy, the MGS orbiter’s observing career comes to a close after a fruitful decade.

Astronomy

November 5, 2025

Trump renominates Jared Isaacman for NASA administrator

The private astronaut and entrepreneur will get a second chance to lead NASA at a critical juncture for the agency.

Astronomy

November 4, 2025

SpaceX, Blue Origin share new lunar landing profiles

NASA lunar landing faces challenges as SpaceX and Blue Origin compete for the Artemis 3 mission lead.

Astronomy

November 4, 2025

Nov. 4, 1922: Tutankhamun’s tomb is discovered

Today in the history of astronomy, King Tut’s tomb – including a dagger famously forged from a meteorite – is found.

Astronomy

November 3, 2025

This Week in Astronomy with Dave Eicher: Observe the Pinwheel Galaxy

This wonderful deep-sky object in the constellation Triangulum is well positioned for your telescope.

Astronomy

November 3, 2025

Nov. 3, 1957: The flight of Laika

Today in the history of astronomy, Sputnik 2 launches the first living creature to space.

Astronomy

November 2, 2025

Nov. 2, 1885: Birth of Harlow Shapley

Today in the history of astronomy, a key figure in our understanding of the Milky Way is born.