Features

Jupiter’s Smash Hit

Contrary to astronomers’ predictions, the visible scars left by the Comet Shoemaker-Levy 9 impacts were not material dredged up from Jupiter but debris from the comet itself.

The New Stars of M42

By observing the Orion Nebula in radio waves, X rays, and infrared radiation, astronomers are beginning to understand how stars form.

Telescopes That Fly

To get clear views into the warm hearts of infrared-emitting regions, astronomers jet to 40,000 feet, above 99.9 percent of Earth’s water vapor.

Sky Almanac

Eclipses of the Sun and Moon take center stage this month, but don’t overlook Mercury’s best morning appearance of the year.

A Stroll Through Tycho and Clavius

The southern highlands feature the Moon’s youngest big crater lying near an ancient, pockmarked one.

T is for Telescope

Buying that first telescope is a huge step into the hobby of backyard astronomy. Here’s what you need to know before making that purchase.

Astronomy Books for Kids

Want to feed a child’s interest in astronomy? You won’t go wrong with one of these outstanding titles.

Reaching for the Corona

Eclipse aficionados will flock to South America this month for up to four minutes of totality. An experienced eclipse chaser gives the lowdown on what to expect and what to take along.

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