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The State of Planetary Defense

The Planetary Report • September Solstice 2019

Vishnu Reddy delivers a sober but hopeful report on our understanding of near-Earth objects, their dangers, and our readiness.

Venus’ Ocean of Air and Clouds

The Planetary Report • September Solstice 2019

Javier Peralta plumbs the depths of Venus’ atmosphere through the eyes of the Venus Express and Akatsuki orbiters.

Hayabusa2 Lander Mania: Results from MASCOT, Plans for MINERVA-II2

Jason Davis • August 28, 2019 • 1

Japan's sample return spacecraft only has about 3 months left at asteroid Ryugu. Its next action will be to drop more stuff on the surface.

Here's How the Large Synoptic Survey Telescope will Revolutionize Small-Body Science

Darin Ragozzine • August 26, 2019 • 1

The LSST is expected to increase the number of known small bodies by more than a factor of 10.

LightSail 2 Marks 1 Month of Solar Sailing

Jason Davis • August 23, 2019 • 1

LightSail 2's orbital high point around the Earth has raised by 7.2 kilometers, without any conventional fuel.

Is a $2 Billion Prize for Landing on the Moon a Good Idea?

Casey Dreier • August 23, 2019 • 7

Though prize incentives can be useful for certain problems, huge cash payouts for human spaceflight are not good policy.

Mars 2020 Rover almost Assembled

Jason Davis • August 22, 2019 • 1

Last week, technicians installed the carousel that holds the tools and drill bits that will be used to collect samples for future return to Earth.

Chandrayaan-2 Enters Lunar Orbit

Jason Davis • August 20, 2019

The combination lander, rover, and orbiter fired its main engine to enter orbit around the Moon at 09:02 IST (03:32 UTC) on 20 August.

OSIRIS-REx Team Picks 4 Candidate Sample Sites on Asteroid Bennu

Jason Davis • August 15, 2019 • 1

The sites each have unique characteristics that would advance the field of asteroid science.

How to See LightSail 2 in the Night Sky

Jason Davis • August 14, 2019 • 5

If your latitude is within 42 degrees of the equator, there's a chance you may be able to spot LightSail 2's reflective solar sail.

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