Astronomers have captured the first-ever spin measurements of HR 8799, the famed system that made history as the very first exoplanetary system to have its image taken. Discovered in 2008 by two ...
Turbulent, swirling currents in Europa's subsurface sea may influence the spin and geology of the moon's icy crust. When you purchase through links on our site, we may earn an affiliate commission.
Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...
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