Gravitational Duet: Brown Dwarf Reveals Its Massive Moons
Astronomers have eavesdropped on a cosmic duet for the first time: two giant planets circle the brown dwarf CD-35 2722 B, and their gravitational echo has left its mark in spectral lines.
Waltz of Invisible Moons: The First Spectroscopic Find
The gravitational dances of celestial bodies long remained silent to astronomers. We learned to catch the shadows of planets against stars with the transit method — a breakthrough that delivered thousands of worlds thanks to William Borucki and his Kepler telescope.