One seismometer is often not enough to reliably detect earthquakes or human activity such as underground nuclear tests.

Exoplanet atmospheres have become prime targets for astrobiologists in the search for life beyond Earth. This is because exoplanet surfaces can't be directly imaged yet, so astronomers must get ...

Investing in stocks means putting your money to work in publicly traded companies. By buying a stock, you get a slice of ownership and a share of its future profits. According to The Motley Fool's ...