The Rhythm of the Spheres

Reading the Night Sky

Wandering in Astronomy

The night sky is the oldest pattern of man, and every culture reads it differently. The stars above keep silent time, moving to a rhythm we are just now beginning to understand. Astronomy is where math, science, art, music, and words meet in a wondrous collision. In this section of our site, learn the basics of astronomy: from how a star chart is made, to projections and art that map the night sky, to how an astrolabe works just like it did thousands of years ago. Watch the North Star shift across centuries, explore how one sky has been mapped by many traditions, read what happened on this day in space, and see tonight’s moon for your location.

Map the Stars

The math behind star charts, with a projection explorer and a working astrolabe.

The Moving Sky

How the sky shifts across centuries, with a precession clock you can run.

The Traditions

One sky reads many ways, with a same-sky overlay of the world’s constellations.

This Day in the Stars

The sky’s events, discoveries, and lore tied to today’s date.

The Moon Tonight

Its phase and face, drawn live for where you’re standing.

โœฆ  Astronomy Picture of the Day  โœฆ

A Planetary Nebula with Cosmic Buckyballs

June 4, 2026
Credit: NASA / ESA / CSA / J. Cami ( Western University ); Image Processing: K. Beecroft Text: Jan Cami ( Western University ) & Cecilia Chirenti ( NASA GSFC , UMCP , CRESST II )
See this entry on NASA's APOD โ†’
What is happening inside this unusual nebula? Planetary nebula Tc 1 , captured here in exquisite detail by the James Webb Space Telescope , is the celestial site where buckyballs were first identified in 2010. Buckminsterfullerene โ€” as buckyballs are officially called โ€” is a molecule with 60 carbon atoms (C 60 ) arranged in the shape of a soccer ball . The molecule is named for architect Buckminster Fuller because of its resemblance to the geodesic dome he helped popularize. Webbโ€™s new data reveal where the C 60 molecules live in this nebula, and the geometry is striking: they populate a thin spherical shell around the central star, visible here as the bright edge of the nebulaโ€™s glowing orange central region. Look closely near the nebulaโ€™s heart and a more perplexing feature emerges: a delicate structure shaped uncannily like an upside-down question mark , fitting punctuation for the many questions this nebula still poses.

Customized Star Charts Coming 1st Quarter 2027

We respect your privacy. Unsubscribe at any time.

โœฆ  EarthSky  ยท  Astronomy.com  ยท  Phys.org  โœฆ
Observing Nov 6, 2026

2026 Full Moon calendar: When to see the Full Moon and phases

The phenomenon of a Full Moon arises when our planet, Earth, is precisely sandwiched between the Sun and the Moon. This alignment ensures the entire side of the Moon that faces us gleams under sunlโ€ฆ

Read
Space Nov 6, 2026

Active volcanoes on Mars? Noxious gas discovery says โ€” maybe

Are there still active volcanoes on Mars? New detections of hydrogen chloride from below the surface suggest flowing magma.

Read
Astronomy Nov 6, 2026

A galaxy nicknamed Misty Moons offers a glimpse of early star formation

Gravitational lensing is one of astronomy's best tricks for seeing the early universe. When a massive galaxy cluster sits in between the observer and a distant object, its gravity bends and magnifiโ€ฆ

Read
Earth Nov 6, 2026

Traces of dinosaur blood found for the 1st time?

For the 1st time, scientists say they've found traces of dinosaur blood. It comes from a 115-million-year-old fossil dinosaur bone from Brazil.

Read
Sun Nov 6, 2026

Sun news: Our star awakens with an M flare

Sun news November 6, 2026: Bam! Sunspot AR4566 fired an M3.5 flare and sent sun-stuff soaring into space. Is any heading to Earth?

Read
Observing Nov 6, 2026

The Sky Today on Friday, November 6: Nab the North America Nebula

Looking for a sky event this week? Check out our full Sky This Week column.  November 5: Smoke out the Southern Cigar As fall gets into full swing, we are seeing less of the summertiโ€ฆ

Read
Nov 6, 2026

Jupiter occulted

Katelyn Beecroft from London, Ontario, Canada On the morning of Oct. 6, 2026, the waning crescent Moon โ€” then about 20 percent lit โ€” occulted Jupiter as seen from much of eastern North America.โ€ฆ

Read
Astronomy Nov 6, 2026

Astronomers deliver the sharpest and deepest view yet of the low-frequency radio sky

Using the Low Frequency Array (LOFAR), an international team led by Leiden University has produced the sharpest and most sensitive radio image of the sky ever made at low radio frequencies. The imaโ€ฆ

Read
Astronomy Nov 5, 2026

Connecting artificial intelligence with the tools of astrophysical research

Investigating a scientific question is often a complex process. As an astrophysicist studying some of the most energetic phenomena in the universe, I know that finding answers requires much more thโ€ฆ

Read