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The Skies of Mini-Neptunes

The Planetary Report • March 2019

A GREAT QUEST is underway to discover Earthsize worlds in their stars’ habitable zones. Along the way, astronomers have been surprised to learn that the most typical size of planet in our galaxy is one with no counterpart in our own solar system.

A Kepler Orrery

The Planetary Report • March 2019

As of mission end on 30 October 2018, Kepler had detected 1,815 planets or planet candidates in multi-planet systems. All 726 such systems are drawn here.

The Realm of the Ice Giants

The Planetary Report • March 2019

Imagine 2 icy worlds far from the Sun. Their serene, blue atmospheres. Huge, ominous-looking storms. Tantalizing glimpses of moons with exotic, icy terrains. Delicate sets of encircling rings.

Amidst Cuts to NASA, Mars Sample Return May Finally Happen

Casey Dreier • March 11, 2019 • 5

The President's Budget Request for NASA in 2020 would start a Mars Sample Return mission and ramp up efforts to send humans to the Moon. But it would still kick off the first year of a new decade with a half-billion dollar cut to the space agency.

The subtle color difference between Uranus and Neptune

Björn Jónsson • March 11, 2019 • 3

The color of Uranus and Neptune is similar, but not identical. Uranus appears greener and Neptune bluer.

Crew Dragon Returns to Earth

Jason Davis • March 08, 2019 • 2

The spacecraft completed a successful test flight with splashdown in the Atlantic Ocean on 8 March 2019 at 08:45 EST (13:45 UTC).

Hayabusa2 Scores a Bulls-eye on Touchdown, More Explodey Fun on the Horizon

Jason Davis • March 07, 2019 • 1

The mission is also gearing up for a possible second sample collection.

Yutu-2 Rocks On into Lunar Day 3 for Chang’e-4 mission

Andrew Jones • March 06, 2019

China’s Yutu-2 rover is continuing to make tracks on the lunar far side.

100 Planetary Society Members. 25 States. 1 Day of Action.

Casey Dreier • March 05, 2019 • 3

Society members from across the United States came to Washington, D.C. on their own dime to advocate for space science and exploration.

Watch Hayabusa2's incredible touchdown on asteroid Ryugu

Jason Davis • March 05, 2019 • 3

The spacecraft fired a bullet into the surface and unleashed a massive spray of debris.

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