Three possible landing sites are now in the running for the U.S. space agency's next Mars rover.
Many of the deep-sky objects we point our telescopes toward have pleasant surprises, some in plain sight, others hidden and more challenging. Let me introduce you to a few.
With the Moon out of the picture, amateurs can once again check in on comet 45P/H-M-P, now making an appearance in the evening sky.
A study of ancient meteorites has refined the date for the dissolution of the solar nebula, the cloud that shrouded our Sun in its earliest days.
Don't miss the chance to see world-class observatories by day and the amazing southern sky by night during next month's astronomy and stargazing tour in Chile.
Green-glowing 45P/Honda-Mrkos-Pajdusakova will make an unusually close pass by Earth on Saturday. Watch it boogie across the morning sky this week!
NASA's Juno spacecraft continues to give us amazing views of Jupiter, now from its fourth perijove pass.
In astrophotography, to dither means to shift the pointing of the telescope slightly in random directions between exposures. Here's how it works, and why you should use it.
Take a high-power ride to seek out baby stars and clotted clouds within the heart of the Orion Nebula.
A recent study found micrometeorites in piles of dirt collected from urban European rooftops.
A unique method reveals the influence of a planet within the stellar disk around TW Hydrae.
The shock and dazzle of Iridium flares will soon be a thing of the past. Here's how to make the most of seeing them before they're replaced by a new generation of satellites.
NASA's Cassini returns stunning new views of Daphnis and friends from its ring-grazing orbits.
Explore two unique astronomical sites that lie under the dark skies of Namibia - the HESS high-energy array and the Africa Millimeter Telescope.
Late sunrises make it easy to follow the parade of planets at dawn, including a nice apparition of Mercury this week with three successive lunar conjunctions.
Japan's Venus orbiter has witnessed a huge atmospheric wave that spans the globe.
Put on a coat, set up your scope, and become a polar explorer as we visit off-the-beaten-path craters and maria in the Moon's arctic vastness.
Last week, NASA announced two new missions set to explore the earliest remnants of the solar system: asteroid 16 Psyche and Jupiter's Trojan asteroids.
An exciting year lies ahead for spaceflight involving astronomy and planetary science — by NASA and by other spacefaring nations.
Comet lovers have much to look forward to in the new year with six potential bright binocular comets and at least two others for modest backyard telescopes.
Photographing double stars is easy and can be done with most any telescope. Chances are you may already have the tools to do it today.
Doing anything on New Year's Eve? Before you start toasting, don't miss an exceptionally close conjunction of Mars and Neptune.
Daylight ebbs to a minimum on Wednesday's winter solstice, but not for long. The very next day, the Sun turns back north and the cycle of light begins again.
Colorful lights twinkle everywhere during the holiday season, including up above in some remarkably tinted double stars. Find out what makes them so alluring.
Welcome to Mars: the European Space Agency's ExoMars Trace Gas Orbiter sets up shop around the Red Planet.