761–780 of 1,395 results
Aldebaran Occultation

Explore the Night with Bob King

Don't Miss Aldebaran's Last Occultation Till 2033

The last and one of the most picturesque occultations of Aldebaran by the Moon happens on Tuesday morning, July 10. Catch it or wait 15 years for the next!

One explosion begets another

Explore the Night with Bob King

Fireworks, Planets, Comets, a Nova — July's Got it All!

July's a busy month for skywatching. Not only are five bright planets in view, but three comets and a newly-discovered nova are also observable. And it all starts with a bang on Independence Day.

Explore the Night with Bob King

The Eyes Have it — Deep-Sky Observing Without Equipment

No telescope? No problem. Just use your eyeballs! On a dark summer night at least two dozen deep-sky objects can be seen without optical aid.

Ryugu closeup

Astronomy in Space with David Dickinson

Hayabusa 2: Welcome to Ryugu

We got a peek at a new worldlet in the inner solar system this week, as the Japanese Aerospace Agency's (JAXA) Hayabusa-2 gave us our first good looks at the tiny asteroid 162173 Ryugu.

Explore the Night with Bob King

Big Dust Storm Blows up on Mars (Updated)

Will Mars soon be hidden under a veil of dust? Let's hope not. We explore the current storm and the planet's upcoming close opposition.

Seeing

Explore the Night with Bob King

Quest for the Green Flash

If you like sunrises and sunsets, look for the green flash, a phenomenon that happens more often that you think.

Horshead

Imaging Foundations with Richard Wright

The Case for Monochrome

Quality monochrome (black-and-white) images are a much easier route to early success in astrophotography — find out how to get started.

tidal disruption event illustration

The Black Hole Files with Camille Carlisle

Black Hole Destroys Star and Shoots Jet

Astronomers have watched the growth of a jet fueled by a shredded star.

Dawn images Ceres from new, low orbit

Astronomy in Space with David Dickinson

NASA's Dawn Probe Reaches Its Low, Final Orbit

NASA's Dawn spacecraft has entered a new and final orbit that will take it less than 30 miles above the surface of asteroid Ceres.

Earthrise

Astronomy in Space with David Dickinson

Apollo Astronauts Warmed the Moon

A new study sheds light on an old mystery surrounding anomalous readings from the Apollo landing sites.

wormhole mouth

The Black Hole Files with Camille Carlisle

Science Fiction Wormholes Don’t Exist

Hoping for faster-than-light travel? Wormholes aren't the paths you're looking for.

G2 en route to black hole

The Black Hole Files with Camille Carlisle

More Mystery Objects in the Galactic Center

Astronomers have discovered three more red, dusty objects near the Milky Way’s central black hole that could be merged stars.

Explore the Night with Bob King

M13 with a Side of Galaxies, Please

The Great Hercules Cluster is on everyone's observing list this summer. But there's lots more to see within a stone's throw of this grand object — like 20 galaxies!

Incoming!

Explore the Night with Bob King

Asteroid 2018 LA Explodes Over Botswana Hours After Discovery

Don't look now — it's already gone! Asteroid 2018 LA screeched into Earth's atmosphere only 7 hours after its discovery to create a Sun-bright spectacle over South Africa and Botswana.

Drill Duluth

Astronomy in Space with David Dickinson

Curiosity Rover is Drilling Again

An innovative technique has allowed NASA's Curiosity Rover to resume drilling Martian rocks. But the partially successful test shows that more work remains to be done.

Explore the Night with Bob King

Vesta Gets Close and Bright

Vesta, the brightest asteroid, puts on one of its best shows ever in June, when it shines enough to see without optical aid.

Explore the Night with Bob King

Spice Up Your Space Station Watching

The annual International Space Station marathon is underway with multiple passes visible each night. Here are some fun and unique ways to see and share it.

Improving signal/Noise

Imaging Foundations with Richard Wright

Astrophotography: Stacking Up Your Signal

The secret to stacking images in astrophotography is increasing signal rather than just increasing the number of exposures.

Moon farside

Astronomy in Space with David Dickinson

Radio Experiment Launches With China's Moon Orbiter

A Dutch radio astronomy experiment hitched a ride today with China's relay satellite for the upcoming Chang'e 4 mission.

LADEE

Astronomy in Space with David Dickinson

Antares Launch to Light Up Sunday Morning Sky

The Cygnus OA-9 mission launching from Wallops Island early Sunday morning could put on quite a show along the East Coast.