To Catch a Dancing Star: The Story of ‘Extreme Precision’ Spectroscopy

Arpita Roy, Space Telescope Science Institute
It has been three decades since astronomers first discovered planets outside our Solar System. This profound scientific moment established the field of exoplanet science and has led us on a whirlwind tour of other worlds, none of which (so far) have been quite like our own. With a few thousand planets under our belt, we are now preparing to hone in on truly Earth-like planets by upgrading some of our oldest planet-hunting tools. Dr. Roy will trace the history of the Nobel Prize-winning “radial velocity" or "Doppler" technique - from the 1970s to current day, from non-precision to extreme precision spectroscopy. We will traverse four orders of magnitude in improvement, and encounter surprisingly dangerous experiments. All of these developments have led to an unprecedented view of the subtle dance being performed by the stars in our sky.
- News from the Universe starts at 3:36
- Main talk starts at 12:55
Host: Frank Summers, Space Telescope Science Institute
Recorded live on Tuesday, February 1, 2022
More information: www.stsci.edu/public-lectures

[@AnotherKiwiGal]

Really enjoying watching these lectures, including this one. Turns out the topic of spectroscopy piques my interest. Have been working my way through ALL the past lectures. :) As I only discovered they were online a few weeks ago, it's kept me busy most evenings! Keep the lectures coming please! Maybe I will actually manage to catch the time zone correctly and watch one live. I tried this time and missed it LOL

[@scenFor109]

Top notch presentation! If Arpita worked on building a tricorder, Theranos style blood diagnosis wouldn't be fiction.

[@S....]

Lecturer actualy spent a lot of time preparing for the lecture. Thank you for that.

[@davidvennel720]

Arpita Roy does a fantastic job with her lecture on extreme precision radial velocity. Its a very enjoyable one, she is a "natural born" science communicator. This is one of my favourites from STSCI.

[@crazydavidsmith]

These videos are absolutely incredible. The high quality of your presenters blows my mind. Your channel is amazing. Thank you for organizing this. You're doing inspiring and worthwhile work.

[@andyfyl5680]

Wow, thank you Arpita for the explanations.

[@marc-andrebrunet5386]

Very interesting subject

[@eloniewordan8890]

Watched Dr.Summer since a kid.

[@user-dc3eb3gu5v]

ชอบมากฮะ

[@nghiathach5823]

💓 🕉️love the whole universe💌💌💞🕉️💞you and I are free, peaceful and prosperous like the whole universe 💞🌟🌟💞 The energy of the universe is always working to support us💞🕉️💞 the organisation and stimulation of evolutionary processes in the biosphere and in human consciousness💞🕉️💞 when that happens they will gradually evolve💞🕉️💞

[@terryjwood]

There are more Penn State graduates than there are grains of sand on a beach. :-)

[@grandbleutrev]

Why can't I watch Dr Arpita's lecture! Its SO annoying!