Sun Dazzles In First-Ever NuSTAR High-Energy X-Ray Portrait

The sun dazzled like a Christmas tree in hues of reds, greens and blues in its first-ever portrait taken in high-energy X-rays this week. NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, was built in 2012, chiefly to observe distant high-energy phenomena like supernovas and black holes. But the extraordinary image released by the space agency on Monday proved the supersensitive telescope can also capture our home star and could potentially solve a long-standing mystery.