Oh, the Places You—Came From?
2I/Borisov is the second interstellar object to visit our solar system. Where could it have come from?
A Comet on TESS’s Vision
TESS was built to find exoplanets. But it turns out it can help us learn a lot about comets too!
Not Far in the Dark
To confirm whether some galaxies have suspiciously low amounts of dark matter, we need to be sure how far away they are.
AAS Congressional Visits Day 2019
I attended AAS Congressional Visits Day. Here is what happened.
An Ad-Mira-ble Distance Measurement
What if we used stars other than Cepheids to measure distances?