Travis Metcalfe
@travis-metcalfe.bsky.social
Astronomy researcher based in Colorado. I run a nonprofit adopt a star program to help fund astronomy research. #firstgen
"Nature is so rich you are unlikely to look carefully at anything without learning something new, particularly in unexplored territory... do something nobody thinks is interesting. Trust me: it will be." ~Ed Nather whitedwarf.org/education/ad...
December 4, 2025 at 4:14 PM
"Nature is so rich you are unlikely to look carefully at anything without learning something new, particularly in unexplored territory... do something nobody thinks is interesting. Trust me: it will be." ~Ed Nather whitedwarf.org/education/ad...
Simplify the holidays, Adopt a Star and support astronomy research! Options start at $10, download your certificate in minutes and view your star in Google Sky. All proceeds support the search for Earth-like planets ⭐ adoptastar.org
November 21, 2025 at 6:15 PM
Simplify the holidays, Adopt a Star and support astronomy research! Options start at $10, download your certificate in minutes and view your star in Google Sky. All proceeds support the search for Earth-like planets ⭐ adoptastar.org
I recently moved over from X, but I have only found a small fraction of the astronomers I followed over there (and almost nobody has found me here yet). #stellarastro #exoplanet
a close up of a feather on a rock with the words `` hello '' written in white letters .
Alt: a close up of a feather on a rock with the words `` hello '' written in white letters .
media.tenor.com
October 24, 2025 at 3:32 PM
I recently moved over from X, but I have only found a small fraction of the astronomers I followed over there (and almost nobody has found me here yet). #stellarastro #exoplanet
When I wrote this "Quick Study" on Weakened Magnetic Braking for @physicstoday.bsky.social in 2018, we already had the physical picture largely correct – we just didn't have all of the evidence in hand to support it. Now we do. physicstoday.aip.org/quick-study/...
The Sun’s magnetic midlife crisis
Old Sun-like stars observed by the Kepler Space Telescope spin faster than astronomers expected. Apparently, they experience a dramatic shift in their rotation and magnetism at about middle age.
physicstoday.aip.org
October 20, 2025 at 2:11 PM
When I wrote this "Quick Study" on Weakened Magnetic Braking for @physicstoday.bsky.social in 2018, we already had the physical picture largely correct – we just didn't have all of the evidence in hand to support it. Now we do. physicstoday.aip.org/quick-study/...
I'll be visiting New Mexico later this week, giving an astronomy colloquium about what happens to stellar dynamos toward the end of main-sequence lifetimes. astro.nmsu.edu/events/collo...
![Activity cycles grow longer and weaker as stars become less active over time. [Data from Isaacson+ 2024, 2025].](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:55s4etj5np7yrntf6ftyoade/bafkreicgrcj7nbgchovighqrkwzuk36j7l5vdrrpy6hvh2zdlmth4npfjm@jpeg)
September 30, 2025 at 8:53 PM
I'll be visiting New Mexico later this week, giving an astronomy colloquium about what happens to stellar dynamos toward the end of main-sequence lifetimes. astro.nmsu.edu/events/collo...
Looking forward to giving the LASP seminar this afternoon, 1:00pm in SPSC-N100 and on zoom (preview of an astronomy colloquium next week at NMSU). lasp.colorado.edu?science-semi...
September 25, 2025 at 1:59 PM
Looking forward to giving the LASP seminar this afternoon, 1:00pm in SPSC-N100 and on zoom (preview of an astronomy colloquium next week at NMSU). lasp.colorado.edu?science-semi...