About Us
Founded in 1944, the American Committee for the Weizmann Institute of Science develops philanthropic support for the Weizmann Institute in Israel, and advances its mission of science for the benefit of humanity.
REHOVOT, ISRAEL—July 19, 2021—Until recently, before NASA’s Juno space probe entered its orbit around the planet Jupiter, no one knew that powerful cyclones approximately the size of Australia rage across its polar regions. Jupiter’s storms, as opposed to the earthly variety, do not disperse and rarely change. In an article published in Nature Geoscience, researchers from the Weizmann Institute of Science reveal the mysteries of Jupiter’s cyclones: which forces affix these gargantuan storms to their polar locations and why the storms’ numbers and locations remain more or less constant over time.
July 19, 2021
REHOVOT, ISRAEL—June 14, 2021—The Boker Tachtit archaeological excavation site in Israel’s central Negev desert holds clues to one of the most significant events in human history: the spread of modern humans, Homo sapiens, from Africa into Eurasia, and the subsequent demise of Neanderthal populations in the region. Researchers from the Weizmann Institute of Science and the Max Planck Society, led by Prof. Elisabetta Boaretto, together with Dr. Omry Barzilai of the Israel Antiquities Authority, returned to Boker Tachtit nearly 40 years after it was first excavated. Using advanced sampling and dating methods, they offer a new chronological framework for this important chapter in our anthropological evolution. Published in the Proceedings of the National Academy of Sciences (PNAS), the study suggests that Homo sapiens and Neanderthals were far from strangers.
June 14, 2021
REHOVOT, ISRAEL—February 25, 2021—Around 2.5 billion years ago, our planet experienced what was possibly the greatest change in its history: According to the geological record, molecular oxygen suddenly went from nonexistent to becoming freely available everywhere. Evidence for what is called the Great Oxygenation Event (GOE) is clearly visible – for example, in banded iron formations containing oxidized iron. The GOE is, of course, what allowed oxygen-using organisms – including, eventually, us – to evolve. But was it indeed a “great event” in the sense that the change was radical and sudden, or were organisms that were alive at the time already using free oxygen, just at lower levels?
February 25, 2021
REHOVOT, ISRAEL—October 5, 2020—Our ancestors not only knew how to use fire, they also developed sophisticated technologies for making tools. Researchers at the Weizmann Institute of Science recently employed cutting-edge technologies of their own to take a fresh look at a collection of stone tools.
October 05, 2020
REHOVOT, ISRAEL—June 29, 2020—The history of our planet has been written, among other things, in the periodic reversal of its magnetic poles. Researchers at the Weizmann Institute of Science propose a new means of reading this historic record: in ice.
June 29, 2020
REHOVOT, ISRAEL—June 22, 2020—What did the very first proteins – those that appeared on Earth around 3.7 billion years ago – look like? Prof. Dan Tawfik of the Weizmann Institute of Science and Prof. Norman Metanis of the Hebrew University of Jerusalem have reconstructed protein sequences that may well resemble those ancestors of modern proteins...
June 22, 2020
REHOVOT, ISRAEL—May 14, 2020—An incredibly accurate clock planned by the Weizmann Institute of Science, the Israeli Space Agency, and an Israeli company could be on its way to Neptune’s largest moon in 2026.
May 14, 2020
Weighing in at just about 160 kg (around 353 lbs), a new type of scientific satellite is planned to be built in Israel over the next four years, with a projected launch date of 2023. The satellite, known as ULTRASAT, will carry a telescope designed to observe the universe as it has never been seen before. The satellite will operate in a range of light that is normally invisible to us – ultraviolet, or UV – and have a very large field of view.
August 12, 2019
The main scientific instrument on board the Israeli Beresheet spacecraft, the SpaceIL Magnetometer (SILMAG), has now been successfully turned on in space and data returned to Earth. After its successful launch, Beresheet is circling Earth on its journey to the Moon. Prof. Oded Aharonson of the Weizmann Institute of Science is heading the team that is currently analyzing the SILMAG information to evaluate the health and accuracy of the instrument in space, as well as recording the magnetic signature of the spacecraft itself, which will then be subtracted from the measurements made on the Moon.
March 17, 2019
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