Author: Lonnie Shekhtman

  • NASA’s OSIRIS-APEX Unscathed After Searing Pass of Sun

    NASA’s OSIRIS-APEX Unscathed After Searing Pass of Sun

    Mission engineers were confident NASA’s OSIRIS-APEX (Origins, Spectral Interpretation, Resource Identification – Apophis Explorer) spacecraft could weather its closest ever pass of the Sun on Jan. 2, 2024. Their models had predicted that, despite traveling 25 million miles closer to…

  • Why is Methane Seeping on Mars? NASA Scientists Have New Ideas

    Why is Methane Seeping on Mars? NASA Scientists Have New Ideas

    The most surprising revelation from NASA’s Curiosity Mars Rover — that methane is seeping from the surface of Gale Crater — has scientists scratching their heads. Living creatures produce most of the methane on Earth. But scientists haven’t found convincing…

  • Why Bennu? 10 Reasons

    Why Bennu? 10 Reasons

    Launched on Sept. 8, 2016, the Origins, Spectral Interpretation, Resource Identification, and Security-Regolith Explorer, or OSIRIS-REx, spacecraft traveled to a near-Earth asteroid named Bennu to collect a sample of rocks and dust from its surface. This mission put Bennu at…