NASA's Dawn spacecraft has transmitted a close-up look at the dwarf planet Ceres’ tall conical mountain referred to as "Lonely Mountain." More here.
George Knapp shares some recent items that caught his attention, including a tie-in for tonight's show about the Beatles-- live concert footage of the their 1965 Shea Stadium concert
NASA's Curiosity rover used its MAHLI camera mounted on a robotic arm to capture this 360-degree selfie of the vehicle sitting above the "Buckskin" rock target
Orbiting high above Earth in the International Space Station, astronaut Scott Kelly photographed a bizarre phenomenon while soaring over Central America
A rare super-flare from the sun is coming one day -- and it may be so intense it could plunge the Earth into utter chaos
This week our two free audio clips are from 8 years ago, when Roger Tolces spoke about voice-to-skull technology, and Chad Lewis discussed the popularity of 'Legend Tripping'
A fascinating new view from NASA's Deep Space Climate Observatory (DSCOVR) shows the "dark side" of the moon as it moves in front of the Earth
New images from the Cassini space probe have spawned a fresh cosmic mystery as strange red stripes were detected on Saturn's moon Tethys.
NASA's Kepler telescope has discovered an exoplanet that is being called a "close cousin" to the Earth
According to a new research, solar activity will fall dramatically during the 2030s to levels last seen during the mini ice age between 1646 and 1715.
New images are being sent back from the New Horizons craft as it closes in on Pluto. In this photo, taken on July, 8, 2015, Pluto and its moon Charon make for a fascinating pair
Using only the power of the sun, experimental aircraft Solar Impulse 2 successfully finished its nearly five-day journey around the world on Friday when it landed in Hawaii.
As part of a British Interplanetary Society conference, a diverse group of thinkers are contemplating how denizens of a future Martian colony could counteract the emergence of a dictator.
George Knapp shares a number of news items that have recently caught his attention, including an article about a cosmic experiment, and photos of America's nuclear weapons legacy
On his final day aboard the International Space Station, NASA astronaut Terry Virts captured a truly breathtaking photo of the Great Pyramids of Giza in Egypt.
George Knapp shares some online items that have recently caught his attention, including a report by The Humane Society on puppy mills, a piece with video on why the US Air Force is developing hypersonic weapons, an essay on the astonishing mathematical...
George Knapp (pictured in a 1999 photo with the great musician B.B. King who recently passed away) shares a number of items that have recently caught his attention
The Curiosity rover recently caught a blue-tinged sunset on Mars. Though the Martian sky is yellow to orange, the blue hue was attributed to the planet's frequent dust storms, which cause a kind of light scattering.