Ep. 745: How We Know If Asteroids Will Attack

Astronomy Cast Ep. 610: What is Required to Confirm Alien Life: Non-Sentient Edition by Fraser Cain & Dr. Pamela Gay Are we alone in the Universe? It's one of the biggest scientific questions we can possibly ask. And yet, with rovers on Mars, missions planned to visit Europa and Ganymede. Powerful telescopes able to detect the atmospheres of exoplanets, we're closer than ever to finding out the answer.

21 Juni 202128min

Astronomy Cast Ep. 609: Volcanos With Benefits: Lava Tubes, Hydro Thermal Vents & More by Fraser Cain & Dr. Pamela Gay Volcanos can be some of the worst natural disasters that we can experience here on Earth. But life wouldn't even exist without them. So, what are volcanos good for anyway?

14 Juni 202128min

Astronomy Cast Ep. 608: NASA Perseverance, The First 100 Days by Fraser Cain & Dr. Pamela Gay As you all know, Pamela refuses to talk about any missions which aren't actually doing science. Well, Perseverance has crossed the line, from fantasy to an actual working rover, scooping regolith and yeeting helicopters. What has the rover accomplished in its first 100 days?

7 Juni 202127min

Astronomy Cast Ep. 607: InSight and Earthquakes by Fraser Cain & Dr. Pamela Gay Mars is cold and dead today, but the massive volcanoes tell us what the planet used to be like, millions and even billions of years ago. But how volcanically active is the planet today? That's what NASA's Mars InSight lander is there to figure out.

31 Maj 202127min

Astronomy Cast Ep. 606 - Time Dilation: Skipping Thru Time by Fraser Cain & Dr. Pamela Gay Have you ever wanted to be a time traveler? Well, good news! You're time traveling right now. Into the future at one second per second. Taking too long? Don't want to wait? Good news, Einstein's got you covered. Today, let's talk about the weird world of time dilation. Also: There are monitor forts to consider… #MonitorFort

24 Maj 202125min

Astronomy Cast Ep. 605: Sounding Rockets by Fraser Cain & Dr. Pamela Gay Last week we talked about balloon-based astronomy. This week we're gonna talk about putting telescopes on rockets and making observations mid flight. Welcome to the wild world of sounding rockets.

17 Maj 202125min

Astronomy Cast Ep. 604: Balloon Astronomy by Fraser Cain & Dr. Pamela Gay So when you think about the world's observatories, I'm sure you're imagining huge telescopes perched atop mountain peaks or space telescopes like Hubble. But you might be surprised to learn that some telescopes are carried high into the atmosphere on board balloons. What can they accomplish?

10 Maj 202126min

Astronomy Cast Ep. 603: New Colors of the Radio Spectrum by Fraser Cain & Dr. Pamela Gay Last week we talked about how new telescopes and techniques are allowing astronomers to explore the shortest wavelengths of light. This week we go to the other end of the electromagnetic spectrum and explore the longer radio waves which are now accessible to astronome

3 Maj 202125min