Abstract: Estimating angles for coherent signals remains a critical challenge in array signal processing. Traditional spatial smoothing techniques can recover the rank loss caused by signal coherence, ...

While it’s only a few weeks into 2026, the latest data shows that the tables are turning in the stock market. Small-cap companies are outpacing large caps, in an early reversal of last year’s dynamic.

Learn about the EU’s plan to shift to a circular economic model to make Europe cleaner and more competitive. Subscribe to this topic See all explainers on this topic The Earth’s resources are limited.

Monday - Friday, 6:00 - 7:00 PM ET Jim Cramer said markets are correcting valuation extremes, with investors selling expensive winners to fund purchases of beaten-down stocks. He pointed to reversals ...

A sector rotation can be a good way for investors to find clues to where the market is headed—but it’s a signpost that often goes unnoticed. Sector rotations happen when big money moves from one area ...

Buyout firms have struggled to sell companies they own and have instead found a workaround to get cash back to clients: Selling the companies to themselves. By Maureen Farrell Maureen Farrell covers ...

Extreme heat in Japan and Australia. Flash floods in Texas and across Europe. Billion-dollar-damaging storms in the Caribbean and Southeast Asia. Weslynne Ashton is a professor of environmental ...

Astronomers have observed enormous filaments of galaxies tied together with dark matter — the stuff scientists believe makes up 85 percent of the total mass of the universe — stretching across ...

WASHINGTON, Dec 8 (Reuters) - Scientists have observed the largest-known rotating structure in the cosmos - a gargantuan thread-like assemblage of hundreds of galaxies, gas and dark matter that makes ...

In this video, we use Python to calculate circular and geostationary orbits! Follow along as we apply physics equations to determine orbital radius, velocity, and the specific conditions needed for a ...