Ranked #1
Episode 18: Cassini Countdown
Episode 18: Cassini Countdown
When the Cassini spacecraft blasted into space on October 15, 1997, even the most optimistic scientists would have had a... Read more
23 May 2017
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22mins
Ranked #2
The Most Dramatic Sky
The Most Dramatic Sky
The most rare objects in the night sky are only visible in some extreme places. Dr. Michelle Thaller introduces us to Dr... Read more
18 Feb 2016
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15mins
Ranked #3
Episode 21: First Light
Episode 21: First Light
There was a time before planets and suns. A time before oxygen. You could say there was time, even, before what we think... Read more
18 Aug 2017
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22mins
Ranked #4
Making (Gravitational) Waves
Making (Gravitational) Waves
Nearly 100 years after Einstein predicted the existence of gravitational waves — huge undulations in the fabric of space... Read more
21 Apr 2017
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26mins
Ranked #5
Our Darkening Universe
Our Darkening Universe
Secrets of the universe? A glimpse of the whiteboard in the office of Nobel Prize-winning astrophysicist Adam Riess. Ada... Read more
9 Mar 2018
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21mins
Ranked #6
The 11 Dimensions of Brian Greene
The 11 Dimensions of Brian Greene
We live our lives in three dimensions. But we also walk those three dimensions along a fourth dimension: time. Our wor... Read more
20 Oct 2017
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29mins
Ranked #7
In Praise of Volcanoes
In Praise of Volcanoes
Astronomer Michelle Thaller talks with Ashley Davies, a research scientist at the Jet Propulsion Laboratory, about the i... Read more
7 Apr 2016
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16mins
Ranked #8
Star Death Tango
Star Death Tango
On August 17, 2017, an alert went out. Gravitational wave detectors in Louisiana and Washington state had detected a dis... Read more
9 Feb 2018
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24mins
Ranked #9
A World Without Boundaries
A World Without Boundaries
From space, the view of earth has no boundaries for countries, no barriers to achievement. Michelle Thaller speaks with ... Read more
15 Jun 2016
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18mins
Ranked #10
Earth, Desert Planet?
Earth, Desert Planet?
Zoe is in 8th grade. She’s a student in Mr. Andersen’s Earth science class at a public school in Brooklyn. Lately, she’s... Read more
23 Mar 2018
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6mins
Ranked #11
Michelle & Her Mom
Michelle & Her Mom
Michelle (L), her mom and sister. In this special Mother’s Day episode, Michelle talks with her mom about what it was l... Read more
29 Apr 2016
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15mins
Ranked #12
Black Hole Breakthroughs
Black Hole Breakthroughs
Scientific discovery can happen in two ways: “Eureka!” moments of sudden understanding, where researchers glean unexpect... Read more
22 Oct 2016
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13mins
Ranked #13
From Another Star
From Another Star
NASA’S office of planetary defense isn’t worried about Klingons or Amoeboid Zingatularians. They worry about asteroids ... Read more
15 Dec 2017
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16mins
Ranked #14
Chasing An Eclipse
Chasing An Eclipse
Michael Kentrianakis loves eclipses and has seen them from all over the world. Host Michelle Thaller and Mike talk about... Read more
15 Jul 2016
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17mins
Ranked #15
Introducing…Telescope!
Introducing…Telescope!
Instead of grappling with the big, cosmic questions that preoccupy adults, this week on Orbital Path we’re doing somethi... Read more
23 Feb 2018
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8mins
Ranked #16
Fireside Physics: A Solstice on Saturn?
Fireside Physics: A Solstice on Saturn?
In this darkest season of the year, Dr. Michelle Thaller and NASA astronomer Andrew Booth curl up by the fire. Gazing in... Read more
29 Dec 2017
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17mins
Ranked #17
The Universe of Leonard Susskind
The Universe of Leonard Susskind
To hear Leonard Susskind tell it, we are living in a golden age of quantum physics. And he should know. Susskind is a gr... Read more
27 Jul 2018
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27mins
Ranked #18
Aliens Again!
Aliens Again!
We’ve got some awkward news to share, folks: The producer of Orbital Path is claiming he’s been abducted by space aliens... Read more
17 Nov 2017
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16mins
Ranked #19
A Tale of Two Asteroids
A Tale of Two Asteroids
The asteroid belt is portrayed in movies as a crowded place with massive rocks bouncing each other like pool balls, capa... Read more
22 Aug 2016
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15mins
Ranked #20
Ozone Disaster Redux
Ozone Disaster Redux
Scientists in 1985 discovered something that threatened the world we live in: The ozone layer had a hole in it. A big on... Read more
26 Jan 2018
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20mins