Joshua Tollefson

TL;DR: In this paper, the authors present five epochs of WFC3 HST HST Jupiter observations taken between 2009-2016 and extract global zonal wind profiles for each epoch, finding that the largest uncertainties in the wind field are due to vortices or hot-spots.

TL;DR: SDS-2015 was discovered by the Hubble Space Telescope (HST) in 2015 as mentioned in this paper, and the size of the dark spot did not exceed 20 degrees of longitude, more than a factor of two smaller than the Voyager dark spots, but only slightly smaller than previous northernhemisphere dark spots.

TL;DR: In this article, the authors reported the discovery of a large (∼"8500"km diameter) infrared-bright storm at Neptune's equator in June 2017. And they tracked the storm over a period of 7 months with high-cadence infrared snapshot imaging, carried out on 14 nights at the 10m Keck II telescope and 17 nights at a 120 inch reflector at Lick Observatory.

TL;DR: In this paper, the authors track the positions of ∼100 bright atmospheric features over a 4-5 h window on each night to derive zonal velocities and wind profiles, which deviate from the smooth Voyager zonal wind profile from Sromovsky et al. (1993), often by 100-200m/s, and often by 3-10 times their estimated uncertainties.

TL;DR: In this paper, the authors observed a cloud system on the south side of the planet Neptune, which was first observed in January 2015 and nearly continuously from July to December 2015 in observations with telescopes in the 2-10m class and in images from amateur astronomers.