Relativity Space aims to create the world's first entirely 3D-printed rockets, built within days rather than years. Funding has now been secured for its first commercial operations in 2021.
A rapidly rotating pulsar is the most massive neutron star ever observed – with 2.17 solar masses placing it on the boundary of the theoretical maximum.
A new European mission – the Far-infrared Outgoing Radiation Understanding and Monitoring mission ("FORUM") – will add a crucial measurement to help understand Earth's changing climate.
Astronomers at the Minor Planet Center report the detection of comet C/2019 Q4 (Borisov), which is likely a second interstellar object, following the earlier discovery of 'Oumuamua.
A new underground neutrino detector, beginning operations in the late 2020s, could make the world's first observation of proton decay, and reveal new clues as to how supernovae explosions create heavy elements.
The most accurate study of exoplanets to date, published by Penn State, estimates that one in six Sun-like stars host planets of a similar size and orbital period to Earth.
Astronomers report a sudden brightening of Sagittarius A*, which became 75 times brighter than usual, suggesting that the supermassive black hole may have encountered another object.
