The micro-Doppler (μD) characteristics of ballistic targets are crucial for estimating motion and structural parameters, as well as for target recognition. However, existing time-frequency (TF) ...

Most people have never seen the Little Dipper, because most of its stars are too dim to be seen through light-polluted skies.

En route to the asteroid system Didymos, Hera will reach its closest point to Mars on March 12. It will use the gravitational pull of the Red Planet to create a slingshot effect, accelerating the ...

Earth’s major climate goal is too warm for the polar ice sheets, study says If Earth stays at its current levels of warming — below policymakers’ goal of 1.5 degrees Celsius — polar ice ...

To tell Elio's story, it was important for filmmakers to visually contrast Earth from outer space.

For decades, scientists have believed there should be black holes that fall between two well-known types. On one end are stellar-mass black holes, formed by collapsing stars, with masses between 5 and ...

Planet Earth is a 2006 British television series produced by the BBC Natural History Unit. Five years in the making, it was the most expensive nature documentary series ever commissioned by the BBC ...

This paper proposes the basic theory of the Larmor precession effect and A low noise earth field proton precession Magnetometer (PPM) design is implemented and a scalar calibrated 3-axis Fluxgate ...

A severe G4 solar storm is expected to hit Earth on June 14, 2025, as reported by NOAA’s Space Weather Prediction Center; solar wind coming from a coronal hole—a region where the Sun’s ...