CAPE CANAVERAL AIR FORCE STATION, FL — The world's largest rocket was ready to rumble with a secret spy satellite for the NRO until Thursday's stormy weather across the so-called 'sunshine state' postponed the engines roar by 48 hours to Saturday, June 11.

A decade of high-tech scanning has confirmed that the Antikythera Mechanism is an ancient astronomical computer.

The smell of Mars could be recreated here on Earth. Might it help prepare colonists for their stay on Mars?

Elon Musk has announced plans to reuse its four rockets in September or October 2016.

One of the big mysteries in astronomy is what happened to all the antimatter? Is it possible that it's actually still out there, in huge antimatter galaxies?

CAPE CANAVERAL, FL — A classified surveillance satellite set to fortify the reconnaissance capabilities of America's spy masters is now set to launch this Thursday afternoon, June 9, atop America's most powerful rocket - the Delta 4 Heavy.

200,000 people applied to be one-way colonists to Mars. Now they're being whittled down to 40.

In this guest post from Photographingspace.com, Janik Alheit explains how he was able to photograph the Milky Way above the normally light polluted city of Cape Town.

PORT CANAVERAL, FL - The spent SpaceX Falcon 9 first stage booster that sped to space and back and landed safely at sea, 'lifted off' for a second time so to speak after CEO Elon Musk's "Baby Made it Home" to her home port around lunchtime on June 2 - as I witnessed and reported here for Universe Today.

This weekend offers backyard scope users a great chance to ferret out letters of the alphabet, etched across the lunar surface. Here's our guide to lunar letters, both well known and obscure.

A new radio-telescope image of Jupiter has revealed the rising plumes of ammonia that help shape Jupiter's clouds.

PORT CANAVERAL, FL - As you may have heard its Mars opposition season. What you may not have heard is that Mars made its closest Earth approach high in the nighttime Sunshine State skies coincidentally at the same time as a sea landed SpaceX Falcon 9 was visible just offshore floating on the horizon below.

SpaceX founder Elon Musk has announced his ambitious plan to get humans to Mars by 2024.

A team of astronomers using the Hubble telescope have found that the Universe is expanding more rapidly than thought.

Port Canaveral, FL- The first ever daylight arrival afforded endless eye-popping views of what can only be described as a truly radiant SpaceX Falcon 9 recovered first stage booster sailing victoriously into Port Canaveral, Florida, at lunchtime today, Thursday, June 2.

The Egyptian boy-king's blade was made 600 years before Egypt had iron-smelting technology.