Launched on Feb. 11, 2010, the Solar Dynamics Observatory, or SDO, is the most advanced spacecraft ever designed to study the sun. On June 5 2012, SDO collected images of the rarest predictable solar event--the transit of Venus across the face of the sun. This event happens in pairs eight years apa...

Shine bright like a diamond: A chance alignment of a blue planetary nebula, a vivid foreground star, and the ESO's Very Large Telescope in Chile produces an apparition like an engagement ring. Guitar virtuoso Joe Satriani provides the soundtrack and his new book "Strange Beautiful Music: A Musical M...

Light as a source of energy is an expression of the existence and life. Light can be defined as that agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous. Sources of light include the sun, a star, a candle or a lighthouse. Lig...

Forty-five years ago, at 11:56 p.m. ET on July 20, 1969, Neil Armstrong became the first man to set foot on the moon. He said, "That's one small step for a man, one giant leap for mankind," and along with astronaut teammates Edwin "Buzz" Aldrin and Michael Collins, they helped change human history.

Dr. Wendy Freedman, Chairman GMT, and Dr. Pat McCarthy, Director GMT, discuss the Giant Magellan Telescope's mirrors and the science that they will enable.

40 years ago, if you were to ask somebody what the future of transportation is going to look like, they might tell you it would be flying cars. But right now, in 2022, if you might ask what the future of transportation will look like by the year 2050, people might think of point-to-point suborbital...

Highlights from a Sept. 28, 2015, briefing with NASA officials discussing the strongest evidence yet that liquid water flows intermittently on present-day Mars.

Some lucky early risers in parts of the northern hemisphere were met with a halo like sunrise early onJune 10, 2021. The annular solar eclipse, also known as a ‘ring of fire’ eclipse, happens when the moon moves between the earth and the sun.

For the first time in history, a recorded song has been beamed back to Earth from another planet. Students, special guests and news media gathered at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif., on Tuesday, Aug. 28, 2012, to hear "Reach for the Stars" by musician will.i.am after it wa...

First Photo of a Black Hole May Be Revealed. Here’s How to Follow the Announcement. Astronomers at last may have captured images of the darkest entities in the cosmos. April 11, 2019 LIVE Press Conference.