Just over a week ago astronomers from all over the United States submitted white papers to the Astro2020 decadal survey on topics across the field of astronomy. They are great short summaries of topics from planetary systems to galaxy evolution to multi-messenger astronomy and everything in-between.
What does a disk around a binary star look like? One possibility, recently observed around a young star for the first time, is that it is flipped on its side—its rotation is perpendicular to the orbit of the binary system!
Yes, ‘Oumuamua is weird; and no, it is probably not a probe sent by an alien civilization. Sometimes scientists (and journalists) should be a little more careful when making (and reporting on) extraordinary claims, especially when the word “alien” is involved.
Extremely accurate measurements of the position of β Pictoris from the Hipparcos and Gaia satellites allow the direct measurement of the mass of the imaged planet β Pic b.
This week about 500 astronomers met in Boston, MA for the 20th Cambridge Workshop on Cool stars, Stellar Systems, and the Sun (Cool Stars) meeting.