581–600 of 1,395 results
A bright supernova

Explore the Night with Bob King

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.

Achieving Balance

Imaging Foundations with Richard Wright

Finding Your (Color) Balance in Astrophotography

Proper color balance is the foundation of a good-quality color image.

Impact event

Astronomy in Space with David Dickinson

After a Century, Geologists Find Crater Responsible for Meteorite Mystery

After a century, researchers may finally have solved a prehistoric meteorite mystery.

Comet PanSTARRS blooms

Explore the Night with Bob King

Comets to Catch in 2020

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

a comet streaks by a floating satelitte against a black background with white star dots

Cosmic Relief with David Grinspoon

Mission to an Interstellar Object

It’s time to visit a body from another star system — without leaving ours.

Dwarf Galaxy

The Black Hole Files with Camille Carlisle

More Big Black Holes Found in Small Galaxies

In the quest to discover how massive black holes form, astronomers have spotted several of these objects in some of the smallest galaxies yet found to host them.

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

Explore the Night with Bob King

Betelgeuse is Dimming . . . Why?

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

ExoMars

Astronomy in Space with David Dickinson

Space Missions to Watch in 2020

Earth invades Mars and beyond with space missions in 2020

Imaging Foundations with Richard Wright

A Few Words on Short Exposures for Astrophotography

As optics and camera technologies continue to improve, just how short of an exposure can we get away with?

Osiris-rex

Astronomy in Space with David Dickinson

NASA Announces Site of Sample Selection for Osiris-REX

NASA has picked the "Nightingale" site, located within a small crater on the asteroid Bennu, for its Osiris-REX mission to sample next year.

The Great Square of Pegasus

Explore the Night with Bob King

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.

Parker Solar Probe

Astronomy in Space with David Dickinson

First Science Returns from NASA's Parker Solar Probe

In the first public release of data from NASA’s flagship heliophysics mission, scientists on the Parker Solar Probe team reveal surprises and mysteries from our host star.

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.

Cameras

Imaging Foundations with Richard Wright

CCDs, CMOS, and the Future of Astrophotography

Sure, the days of the CCD are numbered, but don't start planning the funeral just yet.

a tall thin building at night with the image of a rocket projected onto it

Cosmic Relief with David Grinspoon

A Fitting Apollo Monument

Fifty years after the fact, the National Mall hosts a spectacular, and deeply moving, celebration.

Hayabusa 2

Astronomy in Space with David Dickinson

Hayabusa 2 Leaves Asteroid Ryugu and Heads Home

The Hayabusa 2 spacecraft has completed its mission at asteroid Ryugu — including collecting samples — and is now journeying back to Earth.

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.