New observations of 13C17O gas in HL Tau reveal a massive, gravitationally unstable protoplanetary disk.
Continuing our series on the historical interaction between Western astronomy and Indigenous communities, this post discusses ALMA and other observatories in Chile.
The absence of dusty circumplanetary disks around young giant planets suggests moonetesimals grow relatively quickly.
Protoplanetary disks may be the birth place of planets, but they also throw astronomers for a loop in today’s paper.
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!
On the third day of Christmas the ALMA gave to me, 20 highly resolved protoplanetary disks!