Cassini’s orbits had carried it high above the planet’s poles over the past two years, during which the mission’s ability to encounter the moons, apart from Titan, was limited.
Extra day in April would allow billions to celebrate Welsh mathematician who introduced the symbol π
New research reveals a previously unknown phase of ice
A new study suggests carbon from comets breaking apart acts like a stealth darkening agent on the innermost planet.
Even though cosmic magnetic fields are much weaker than Earth's magnetic field, they have an important effect in regulating how stars form.