21–40 of 328 results
Mini-moon discovered

Celestial News & Events

Earth Has A Mini-Moon — But Not for Long!

Two astronomers discovered a temporary mini-moon captured by Earth — but it's about to win its freedom.

Then and now

Explore the Night with Bob King

The Fall and Rise of Betelgeuse

With its recent uptick in brightness, Betelgeuse appears to be slowly returning to normal. But will it? Astronomers urge us to keep watch.

Betelgeuse telescopic view

Variable Stars

Is Betelgeuse Approaching a Crossroads?

Astronomers all over are waiting with bated breath to see what Betelgeuse will do next. Is it going to start brightening again on February 21st? Or will it continue to surprise?

Mars at the moon's edge

Explore the Night with Bob King

Watch the Moon Occult Mars Before Sunrise on February 18th

Occultations of stars by the Moon occur routinely, but planetary lunar occultations are much rarer birds. That's why I hope you'll make the effort Tuesday morning February 18th to watch the waning crescent Moon occult the planet Mars.

A bright supernova

Comets

The Latest on Betelgeuse, Plus a Bright Supernova and New Comet Iwamoto

The sky provides. This winter, the fading of Betelgeuse caught us all by surprise. Now, as January wraps up, we can add a new comet discovery and a supernova bright enough to see in a 6-inch telescope to an ever-growing list of seasonal sky wonders.

Comet PanSTARRS blooms

Celestial News & Events

Comets to Catch in 2020

Here's the lowdown on which comets will brighten our skies in 2020.

Explore the Night with Bob King

High Hopes for the 2020 Quadrantid Meteor Shower

The annual Quadrantid meteor shower is expected to put on a great early morning show this weekend.

Betelgeuse in Orion

Variable Stars

Betelgeuse is Dimming . . . Why?

The bright star Betelgeuse has faded to a historic low as astronomers try to figure out why.

The Great Square of Pegasus

Celestial Objects to Observe

Deep-sky Dive Into the Great Square of Pegasus

We return to Pegasus, but this time with a telescope to find a grab-bag of overlooked deep-sky treasures.

Geminids Dec 13_2018 Bob King 480x274

Explore the Night with Bob King

Geminids and the Moon Duke it Out

Don't let light from the gibbous Moon discourage you from enjoying the annual Geminid meteor show on the peak night, December 13-14.

The Great Square of Pegasus

Explore the Night with Bob King

Counting Stars in the Great Square

Test the limits of your vision — and the darkness of your sky — by taking a plunge into the Great Square of Pegasus.

Explore the Night with Bob King

Meteor Shower Was a Dud, But Showing Up Was Half the Fun

The Alpha Monocerotids happened as predicted, even if not quite as we expected.

Alpha Monocerotid Radiants

Explore the Night with Bob King

Intense Meteor Storm Expected from the Alpha Monocerotids

Circle the date November 21st on your calendar, when a brief but potentially spectacular meteor storm might light up the night.

Celestial News & Events

Don't Miss Monday's Rare Transit of Mercury

On Monday, November 11th, Mercury will pass directly in front of the Sun and look a tiny black dot silhouetted against the brilliant solar disk. The event, called a transit, occurs approximately 13 times a century.

Incoming point

Asteroids

"Potentially Hazardous" Asteroid Is Headed For Your Telescope

A potentially hazardous asteroid makes a flyby of Earth this Friday, offering amateurs with modest telescopes a chance to ride along.

Moon

Crack Your Crescent Moon Record

Calling all crescent lovers! Here's a chance to set a new personal record by seeing one of the oldest moons ever.

Comet Africano in full glory

Celestial News & Events

Autumn Comets, Mira's Eye & The Orionid Meteor Shower

Four comets, a famous variable star, and sprinkles of dust from Halley's Comet are highlights of the October sky.

Double Stars

Treasure Hunting in the Hall of the Deep-Sky King

Cepheus, the King, has hidden his treasure well but not so much that curious amateurs can't find more than enough to stuff their pockets.

Interstellar Comet Borisov

Solar System

Will Amateurs Be Able to See the New Interstellar Comet?

Only the second object thus far to visit the solar system from interstellar space, Comet Borisov is expected to reach perihelion in December. What can we see now?

Explore the Night with Bob King

Another Interstellar Visitor Is Headed Our Way

An amateur astronomer has discovered a comet that might be the second interstellar visitor after 'Oumuamua — and it's heading for its closest approach to the Sun late this year.

Advertisement
Advertisement
Advertisement
Advertisement