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When New Horizons' next target passed in front of a star, this scientist was watching from Argentina

Alejandro Soto • June 16, 2017

A team of scientists recently traveled to rural Argentina in the hopes of catching New Horizons' next target—Kuiper Belt object MU 69—crossing in front of a distant star.

Pretty Pictures of the Cosmos: Waltzing Through the Universe

Adam Block • May 25, 2017

Award-winning astrophotographer Adam Block brings us more of his stunning images of the universe—this time of cosmic dances through space.

Earth's ring system: This mosaic shows 46+ geostationary satellites in one image

Adam Block • May 05, 2017

Astrophotographer Adam Block captures 46 geostationary satellites, plus some unnamed stragglers, in one 10-frame image mosaic.

On Cosmic Discovery and Human Significance

Jake Rosenthal • December 28, 2016

Jake Rosenthal takes us on a tour of the history of discovery of our place in the cosmos.

Gaia's first galaxy map

Emily Lakdawalla • September 14, 2016

The astronomy world is abuzz today because of ESA's announcement of the first release of data from the Gaia mission. Gaia is a five-year mission that will eventually measure the positions and motions of billions of stars; this first data release includes positions for 1.1 billion of them, and proper motions for 2 million.

Half the Park is After Dark: Stargazers Celebrate U.S. National Parks Centennial

CaLisa Lee • August 08, 2016

On August 25th, 2016, the U.S. National Park Service is celebrating its Centennial. That’s 100 years of protecting the lands and the night skies so that people from around the world and all walks of life can come and see the stars!

Pretty Pictures of the Cosmos: Star Stream

Adam Block • July 31, 2015

Award-winning astrophotographer Adam Block presents the first-ever high-resolution color images of the "star stream halo" of the spiral galaxy NGC 4414.

Rising Stargirls: Girls of All Colors Learning, Exploring, and Discovering

Aomawa Shields • February 07, 2015

Aomawa Shields discusses a workshop she designed for underrepresented girls in grades 6-8 that will teach key concepts in astronomy, highlighting what is beyond what we can see with our eyes, using nontraditional methods.

Take My Free Online College Introduction to Planetary Science and Astronomy CSUDH Class

Bruce Betts • February 04, 2015

Our own Dr. Bruce Betts is once again teaching his Introduction to Planetary Science and Astronomy college course online. Come join him.

Pretty Pictures of the Cosmos: Overlooked

Adam Block • January 14, 2015

Astrophotographer Adam Block showcases some stunning images of lesser-known galaxies and nebulae.

Pretty Pictures of the Cosmos: Infinity

Adam Block • December 23, 2014

Astrophotographer Adam Block shares four stunning images capturing the expansiveness of the universe.

Pretty Pictures of the Cosmos: Strange and spooky

Adam Block • December 12, 2014

Award-winning astrophotographer Adam Block shares his haunting images of three different types of nebulae.

The Birth of the Modern Universe

Amir Alexander • August 29, 2014

Amir Alexander reviews Alan Hirshfeld's newest book, "Starlight Detectives: How Astronomers, Inventors, and Eccentrics Discovered the Modern Universe."

Pretty Pictures of the Cosmos: Perception

Adam Block • July 25, 2014

Astrophotographer Adam Block shares two recent images of star clusters, along with a pair of depth perception-defying galaxies.

Pretty Pictures of the Cosmos: Interacting Galaxies

Adam Block • July 02, 2014

Award-winning astrophotographer Adam Block showcases some of his stunning images of what happens when galaxies get a little too close to each other.

Pretty Pictures of the Cosmos

Adam Block • June 06, 2014

Award-winning astrophotographer Adam Block shares some of his recent work.

A GRB in M31...or not

Philip Evans • May 28, 2014

The Twittersphere has been alive with speculation about a Gamma Ray Burst in the nearby galaxy M31. The problem is, there was never a claim of such an event, and it turns out that the tentative result that triggered this story was overstated.

Complete 2014 Astronomy Course Online

Bruce Betts • May 19, 2014

Bruce Betts has completed the lectures for his online 2014 Introduction to Planetary Science and Astronomy Course at CSUDH: all are online and you can earn a Certificate of Achievement for watching them.

The Case of the 5-Millisecond Cosmic Radio Burst

Katherine Mack • May 14, 2014

Everyone loves a good mystery. In astronomy, there is nothing more exciting than an unexplained signal.

Illustris: A realistic virtual universe

Mat Kaplan • May 08, 2014

Watch another universe unfold as simulated by Illustris, using a model that required 8,000 processors running in parallels 3 months to create!

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