A six-planet alignment or parade will form an arc in the early night sky, peaking in it's visibility Jan. 17-18. We let you ...

Mars is home to perhaps the greatest mystery of the Solar System: the so-called Martian dichotomy, which has baffled ...

Mars has northern and southern hemispheres like Earth, but their defining characteristics are markedly different, a ...

Mars's atmosphere and climate are impacted by interactions with solar wind, a stream of plasma comprised of protons and ...

Alignments of five or more planets are rare—there will be two more featuring five or more planets this year, but after that ...

Have you read on social media about the “once in 396 billion years” planetary alignment happening on Jan. 25? Guess what? Social media is not reliable. Here’s what’s really going on — and why you ...

Six planets will seem to line up along their orbits, with four of them bright enough to be visible without a telescope ...

From windswept craters to frigid ice caps, explore Martian landscapes through the eyes of NASA’s orbiters, probes and rovers ...

Venus, Saturn, Jupiter, Mars, Uranus, and Neptune — are currently forming a breathtaking arc in night night sky ...

Dark matter has eluded us for many decades. Even our most advanced particle colliders and sophisticated underground detectors have come up short. But it may be that we can finally ...

Coined the ‘parade of planets’, the special celestial event will occur just after sunset and will see six planets — Mars, ...