At a Glance Earth's magnetic poles may undergo a full reversal, according to researchers.There's no way to predict pole reversals yet, but scientists say the planet is overdue for one. The magnetic field acting as our planet’s invisible armor may be close to a reversal in which the magnetic poles trade places, scientists say. There is currently no way to predict geomagnetic reversals, but because we’re overdue for one and the Earth’s magnetic field has been decreasing, , reports the...

While exploring Mars, NASA’s Curiosity rover came across a what researchers say is a mineral-rich meteorite. The image of the rock, which has been dubbed Ames Knob, was , according to NASA. Results from Curiosity's ChemCam, a laser-firing spectrometer, suggest that ,Space.com reports. , such as a metallic luster and a slightly dimpled texture that may come from regmaglypts, which are indentations commonly seen in meteorites, accordingto Phys.org. The markings occur when softer materials are stripped from the rock’s surface...

In the 1966 photo above, NASA technicians work on the Spacecraft 012 Command Module in Cape Kennedy, Florida. During a launch pad test on Jan. 27, 1967, a flash fire erupted inside of the capsule and a stuck hatch door led to the deaths of the three Apollo crew members inside. (NASA via AP) At a Glance On the 50th anniversary of the Apollo 1 tragedy, NASA has created an exhibit honoring the three astronauts that were killed.The hatch that...