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To get the answer, we have to know what to look for and where to go on the planet for evidence of past life. With the Perseverance rover set to land on Mars on February 18, we are finally in a position to know.

In 1897 author H.G. Wells imagined a different way to see Mars in his short shorty, “The Crystal Egg." Writing around the same time as his famous novel, “War of the Worlds,” he introduces us to two humans who discover a mysterious egg-shaped crystal that allows them to view the surface of Mars – and the strange creatures that inhabit it.

The Apollo program should be remembered as much for landing the first humans on the Moon as it is for countless demonstrations of problem solving and ingenuity, of continual fine-tuning and honing of expertise, which enabled NASA to set even more ambitious goals with each successive mission.

Be a part of the Perseverance landing with these six ways of celebrating the rover's mission!

Right now COVID-19 vaccines are traveling across the country and around the world – and air travel is a critical component of this supply chain. On today’s episode we’re breaking down the history of the cold chain and how air safety plays a part (particularly with all that dry ice).

The 50th anniversary of the Apollo 14 mission, which included the longest moonwalk without a rover, is a good time to show how traverses away from the lunar landers progressed from one mission to the next.

A new global inventory of landforms created by water on Mars confirms they are more common than previously reported. Many of these landforms formed late in Mars’ history, which tells us that the timeframe that Mars may have been habitable for life lasted longer than we previously thought.

On January 28, 1986, Space Shuttle Challenger disintegrated 73 seconds after launch. The disaster was felt in the space community.

Seventy-three seconds after launch, Challenger was destroyed on live TV. We did not understand what we saw: Our teachers could not explain it, our parents were unlikely to have better answers, and few of us probably spent time paying attention to what transpired afterwards in terms of the official investigation. The Challenger disaster symbolizes a moment in our personal and shared memories when we felt great sorrow together.

Over the summer we collaborated with the artist Diplo on a companion album to his new record MMXX. It’s called Under Ancient Skies and it’s available wherever you stream music. But we also created an audio tour of the night sky for a series of small, outdoor concerts Diplo performed.