Astronomy

Hercules

Hercules

M13. Photo © Reinhold Wittich/Dreamstime.com. Hercules, the Strongman, is a large constellation that lies straight east of Bootes, the constellation we focused on last month. If you imagine a line...

Light Sailing

Light Sailing

Is it possible to sail on light? This question was asked hundreds of years ago and answered relatively recently.

Bootes

Bootes

View the full issue in the Magazine Archive M3. Photo © Reinhold Wittich|Dreamstime.com. Bootes lies nearly straight overhead on June evenings in the Northern Hemisphere. This constellation is...

Hello…Can Anybody Hear?

Hello…Can Anybody Hear?

In 1974, a group of scientists used the Arecibo radio telescope to beam a call to outer space—to no one in particular…

Galaxy Night

Galaxy Night

I jumped out of bed before I could change my mind, and stumbled sleepily outside to set up my telescope in the corner of the yard.

Monoceros

Monoceros

Monoceros the Unicorn is one of the most overlooked winter constellations.

Jupiter is so BIG That…

Jupiter is so BIG That…

Jupiter is the biggest planet in the solar system at about 88,800 miles across. That’s big enough to create the amount of gravity needed to clean up many unstable objects that could threaten the Earth.