March 28, 2019 updates Posted on March 28, 2019June 28, 2020 by Doug Loss JWST review board raises schedule concerns https://spacenews.com/jwst-review-board-raises-schedule-concerns/ Webb IRB Assessment with NASA Response https://www.nasa.gov/sites/default/files/atoms/files/webb_irb_assessment_with_nasa_response_03.01.19.pdf James Webb Space Telescope: Opportunity Nears to Provide Additional Assurance That Project Can Meet New Cost and Schedule Commitments https://www.gao.gov/assets/700/697887.pdf Evidence against non-gravitational acceleration of 1I/2017 U1 ‘Oumuamua https://link.springer.com/article/10.1007/s10509-019-3542-z The new 4‐m robotic telescope https://onlinelibrary.wiley.com/doi/10.1002/asna.201913556 A transiting exocomet detected in broadband light by TESS in the β Pictoris system https://arxiv.org/abs/1903.11071 Efficient Follow-Up of Exoplanet Transits Using Small Telescopes https://arxiv.org/abs/1903.11078 Transverses instability in the “light sail” ion acceleration https://arxiv.org/abs/1903.11354