Hubble’s Greatest Snaps

Here’s Hubble’s best year by year from HubbleCast: 1990: Saturn Among the first images to be sent back from Hubble after its launch in April 1990, this image of Saturn [...]

Narrowing the Search for Dark Matter

Scientists have further narrowed the search for a hypothetical particle that could be dark matter, the mysterious stuff that makes up 80 percent of all the mass in the universe. [...]

Birth of a Great Observatory

For many centuries, maps of the southern sky showed extensive blank areas — the Terra Incognita of the heavens. The year 1595: For the first time, Dutch traders set sail [...]

Why the Runaway Universe Discovery Won the Nobel P

From EsoCast, Dr. J. explores the upheaval in our understanding of the universe brought on by the discovery that the universe is not just expanding, but is accelerating outward at [...]

Einstein’s Greatest Blunder

Excerpt from “Mysteries of a Dark Universe.” Albert Einstein sought to explain why the gravity of all the stars and gas out there didnt simply cause the universe to collapse [...]