Palmer amaranth (Amaranthus palmeri S. Watson), morningglory (Ipomoea spp.), sicklepod (Senna obtusifolia L.), and large crabgrass (Digitaria sanguinalis L.) are among the most troublesome weeds ...

Here’s how it works. Galaxies may be anchored to giant "dark stars" — clumps of invisible matter sitting at their cores, new research suggests. Although astronomers have an abundance of ...

However, they did not develop the larger clumps of tau, known as fibrils, that are often seen in more advanced stages of disease. Even without fibrils, the researchers found that the accumulation of ...