... The grand, winding arms are almost mesmerizing in this face-on view of NGC 7424, a spiral galaxy with a prominent central bar. About 40 million light-years distant in the headlong constellation Grus, this island universe is also about 100,000 light-years across making it remarkably similar to our own Milky Way. ... Announcing Comet Machholz . ... M87 s Energetic Jet . ... In the Center of the Heart Nebula . ... The large emission nebula dubbed IC 1805 looks, in whole, like a human heart. ...