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Today in the History of Astronomy

Axiom 4 launch delayed again as Starlink and Blue Origin missions prepare for liftoff

Human Spaceflight, Today in the History of Astronomy

June 16, 1963: Valentina Tereshkova is the first woman in space

Today in the History of Astronomy

June 15, 763 BCE: Assyrians record a solar eclipse

Science

James Webb, Hubble space telescopes face reduction in operations over funding shortfalls

Human Spaceflight, Today in the History of Astronomy

June 14, 1949: The first mammal in space

$A colorful planetary nebula, NGC 7008 (also known as the Fetus Nebula), glows in shades of turquoise, pink, and purple against a dense star field. The nebula appears roughly spherical with wispy, complex internal structures. Bright foreground stars, including one with prominent diffraction spikes, add contrast to the dark background of deep space.$

Deep-Sky Objects

Deep-Sky Dreams: NGC 7008

Astrophotography, Observing

How I learned to love the Northern Lights

Astronomy for beginners, Observing, The Sun

Michael’s Miscellany: Take a Look at the Sun

Robotic Spaceflight, Today in the History of Astronomy

June 13, 1983: Pioneer 10 leaves solar system

Sky This Week, The Sky This Week

The Sky This Week from June 13 to 20: The Red Planet visits Regulus

Galaxies

Hubble spots a cosmic bullseye

Today in the History of Astronomy

June 12, 2021: Seiji Ueda discovers Nova Herculis 2021

Solar System, Stars

ESA’s Solar Orbiter reveals the Sun’s poles for the first time

Star trails in the night sky over a mountain

Observing, Telescopes and Equipment

New astronomy products to kick off your summer observing

Human Spaceflight, Space Exploration, Today in the History of Astronomy

June 11, 1986: Chesley Bonestell dies

Galaxies

Galaxy cluster pileup sets record for the size of its glow

The Axiom Mission 4 (Ax-4) crew poses in their official flight suits against a dark blue background. From left to right: an astronaut from India, Shubhanshu Shukla; NASA astronaut and mission commander Peggy Whitson (front center); European Space Agency astronaut from Poland, Sławosz Uznański (back center); and Hungarian astronaut Tibor Kapu (right). Each crew member wears a navy and black suit with mission patches, national flags, and name tags.

What’s Launching This Week

Axiom 4 makes history while SpaceX Starlink launches dominate the week

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This artist’s conception illustrates one of the most primitive supermassive black holes known (central black dot) at the core of a young, star-rich galaxy. Astronomers using NASA’s Spitzer Space Telescope have uncovered two of these early objects, dating back to about 13 billion years ago. The monstrous black holes are among the most distant known, and appear to be in the very earliest stages of formation, earlier than any observed so far. Credit: NASA/JPL-Caltech.

Science

Explore the science of space, from the astrophysics of stars to the ultimate fate of the universe.

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Observing

Learn about upcoming observing events such as eclipses, meteor showers, comets, conjunctions, and more.

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This 2016 Curiosity rover selfie shows the vehicle at the “Okoruso” drilling site on Mount Sharp’s Naukluft Plateau. The Martian scene is a mosaic of images taken with the arm-mounted Mars Hands Lens Imager (MAHLI). Credit: NASA/JPL-Caltech/MSSS. Credit: NASA/JPL-Caltech/MSSS.

Space Exploration

Human and robotic missions are helping humanity explore our solar system and beyond.

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June 2025

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Sky This Week

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Sky This Week, The Sky This Week

The Sky This Week from June 13 to 20: The Red Planet visits Regulus

Sky This Month

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Observing

June 2025: What’s in the sky this month? Titan’s shadow transits Saturn, and Mercury meets with Jupiter in the evening

Picture of the Day

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A rosette is a rosette

Massimo Di Fusco, taken from Ferrara, Italy

The Little Rosette Nebula (Sharpless 2–170) in Cassiopeia is not as frequently imaged as its bigger namesake in Monoceros. But like the Rosette Nebula, it contains pillars of dark, dense dust that are birthing infant stars. This image combines over 19 hours of exposure from an 8-inch scope at f/4.8 using dual- and quad-band filters.