Planetary Radio • Feb 09, 2016
Planet 9 From Outer Space!
On This Episode
![20130305 brown mike](https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_60_line/20130305_brown-mike.jpg)
Mike Brown
Planetary Astronomer for California Institute of Technology
![20160209 konstantin batygin thumbnail](https://planetary.s3.amazonaws.com/web/assets/pictures/_576x576_crop_center-center_60_line/20160209_konstantin-batygin-thumbnail.jpg)
Konstantin Batygin
Assistant Professor of Planetary Science for California Institute of Technology
Mike Brown and Konstantin Batygin fully expect a new and undemotable ninth planet will be found in the outer reaches of the solar system. The Caltech researchers talk about their findings and much more. Emily Lakdawalla has made a wealth of Chinese lunar lander images much more accessible. Have gravity waves been discovered? Bill Nye hopes so, as he also remembers Apollo 14 moonwalker Edgar Mitchell.
![Planet 9](https://planetary.s3.amazonaws.com/web/assets/pictures/_2400x1429_crop_center-center_82_line/20160209_Planet-9.jpg 2400w, https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x714_crop_center-center_82_line/20160209_Planet-9.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x457_crop_center-center_60_line/20160209_Planet-9.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x343_crop_center-center_60_line/20160209_Planet-9.jpg 576w)
![Mike Brown and Konstantin Batygin](https://planetary.s3.amazonaws.com/web/assets/pictures/_2400x1800_crop_center-center_82_line/20160209_mike-brown-konstantin-batygin.jpg 2400w, https://planetary.s3.amazonaws.com/web/assets/pictures/_1200x900_crop_center-center_82_line/20160209_mike-brown-konstantin-batygin.jpg 1200w, https://planetary.s3.amazonaws.com/web/assets/pictures/_768x576_crop_center-center_82_line/20160209_mike-brown-konstantin-batygin.jpg 768w, https://planetary.s3.amazonaws.com/web/assets/pictures/_576x432_crop_center-center_82_line/20160209_mike-brown-konstantin-batygin.jpg 576w)
Related Links:
- Caltech Article and Video About Planet 9
- XKCD: Possible Undiscovered Planets
- Mike Brown’s Planets
- Seventh Season—Konstantin Batygin’s Rock Band
- Fun With a New Data Set: Chang'e 3 Lander and Yutu Rover Camera Data
- Planetary Radio Extra: LightSail Update
This week's prizes are a lovely Planetary Radio t-shirt, a 200-point iTelescope.net astronomy account AND a set of Year In Space wall and desk calendars.
This week's question:
What was famous astronomer Herschel’s first and middle names?
To submit your answer:
Complete the contest entry form at http://planetary.org/radiocontest or write to us at [email protected] no later than Tuesday, February 16th at 8am Pacific Time. Be sure to include your name and mailing address.
Last week's question:
In Earth days, how long is a Pluto day (as well as a Charon day)?
Answer:
The answer will be revealed next week.
Question from the week before:
Where in the solar system is Anthony Patera?
Answer:
Anthony Patera is both a shallow depression on Venus that honors Susan B. Anthony and a distinguished professor at MIT.