Mars lake was discovered using the MARSIS radar on board the "Mars Express" orbiter, and the profiles were collected between May 2012 and December 2015. The lake is centered at 193°E, 81°S, a flat area that does not exhibit any peculiar topographic characteristics. It is mostly surrounded by higher ground except on its eastern side, where there is a depression. Mars has two relatively small (compared to Earth's) natural moons, Phobos (about in diameter) and Deimos (about in diameter), which orbit close to the planet. Asteroid capture is a long-favored theory, but their origin remains uncertain. Both satellites were discovered in
One Is the Other his superb quartet constantly hint at references from all over the jazz tradition". Steve Greenlee wrote in "JazzTimes" that "The Billy Hart Quartet gets more laidback with each release. "One Is the Other" is the group’s third effort (and second on ECM), and it is a demonstrably looser, freer affair than its predecessors. It’s as though the veteran drummer and his younger compadres—tenor saxophonist Mark Turner, pianist Ethan Iverson, bassist Ben Street—decided they’d proven themselves and can now take more risks with their music". "All About Jazz" correspondent John Kelman observed "with ECM paying increasing attention to North American musicians—with