The “Black Eye” galaxy, also known as M64 and more officially as NGC 4826, stands out because of a dark band of dusty debris that spreads out across one side of a brilliant nucleus. The gas in the non-stellar outer reaches rotates in the opposite direction from gas in the inner regions, possibly suggesting a merger with a gas-rich galaxy in the distant past. New stars are forming where the counter-rotating gas collides. Discovered by English astronomer Edward Pigott in 1779, NGC 4826 is located some 17 million light years from Earth in the constellation Coma Berenices and is a familiar target for amateur astronomers. This spectacular view was captured by the Hubble Space Telescope.
Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. The planet, called 2M1207b, is about four times more massive than Jupiter and is dubbed a “super-Jupiter.” This is the first measurement of the rotation of a massive exoplanet using direct imaging.