Cold Snap Up North

NASA’s InSight Mars lander keeps daily records of weather conditions at the Elysium Planitia landing site on the red planet. Last week ...

Air Date: February 29, 2020

Listen 06:23

Older than Dirt

Stardust discovered in a meteorite that landed in Australia more than 50 years ago is up to three billion years older than our solar syst ...

Air Date: February 22, 2020

Listen 08:34

Coming Attractions

Astronomers observing white dwarf stars see spectrographic signatures of previously orbiting gas giant planets. Our gas giants (Jupiter a ...

Air Date: February 8, 2020

Listen 07:53
NASA's three Great Observatories -- the Hubble Space Telescope, the SpitzerSpace Telescope, and the Chandra X-ray Observatory -- joined forces to probe theexpanding remains of a supernova, called Kepler's supernova remnant.


Supernovae are known as element factories, but astronomers are now discovering that merging neutron stars and fast-spinning supernovae ma ...

Air Date: January 11, 2020

Listen 05:55
the Winter Solstice

Mark the Moment

We’ve arrived at the point in our solar orbit where the number of hours of sunlight are at a minimum for us in the North, and and c ...

Air Date: December 23, 2019

Listen 02:48
child with telescope

Worth A Look

Thinking about buying a telescope as a gift this holiday season? Consider these three easy guidelines: 1) Start simple; a telescop ...

Air Date: December 9, 2019

Listen 08:28