share this article This article is free to share under the Attribution 4.0 International License. Collapse of dark matter may be the missing ingredient in explaining how supermassive black holes formed before the first stars. A growing mystery in astronomy is the existence of massive black holes (some as heavy as a billion suns) that … Read more
Something strange is swirling in the waters around Antarctica. From the 1970s until 10 years ago, ice floes radiating from the continent continued to expand, even though climate change was already in full swing. Then in 2016, as rising global temperatures appeared to catch up with Antarctica, it suddenly shrunk dramatically, but it has yet … Read more
NIST scientists Stephen Schlamminger (left) and Vincent Li examine the torsional balance used to measure the gravitational constant. G, A 10-year effort. credit: R. Escalis/NIST It was time to open the envelope, but National Institute of Standards and Technology (NIST) physicist Stephen Schlamminger wasn’t sure if he wanted to know the secret number inside. For … Read more