Today in the history of astronomy, President Eisenhower signs the National Aeronautics and Space Act.

Contrast efficiency of telescopes is important in this case because the planet’s surface, atmosphere, and rings are composed ...

Vixen Saitama, Japan The Mobile Porta Mount is the new, easily portable piece in the popular Porta line. The alt-azimuth accessory has friction stop motion to locate objects quickly. Telescopes ...

Saturn’s largest moon Titan lies well east of Saturn this morning, while several other, smaller satellites cluster closer to the rings.

Here’s what’s launching from July 28 to August 3: a cutting‑edge Earth‑observation mission joins a crewed flight to the ...

Earth’s satellite and the Red Planet offer a picturesque view amid the stars of Virgo for a few hours after sunset tonight.

Stars are more colorful than you think! Patience will reveal them; head outside tonight to see summer’s multi-hued stars.

A set of books belonging to Charles Messier have joined the collection of David J. Eicher, offering a rare link to the comet ...

The young open cluster NGC 6709 soars through the sky tonight, visible in Aquila with binoculars or any telescope.

Today in the history of astronomy, a Prussian photographer captures totality.

Perseus Moving Group, also known as the Alpha Persei Cluster, is a cluster of 500 stars, offering a glimpse of our Sun’s ...

Pluto reaches opposition and the Moon waxes to First Quarter as shooting stars streak through the sky this week.