Daily Planetary Defense News

Curated headlines and official announcements from NASA, ESA, and major observatories.

esa-space-safety

Lunar Gateway: Earth’s guard post against asteroids?

Humankind’s next space outpost, the lunar Gateway, will serve as a staging point to reach the surface of the Moon. A new ESA-backed study is considering whether it could also be used as a deployment point for planetary defence missions, to intercept asteroids approaching dangerou...

esa-space-safety

ESA’s Hera asteroid mission is go

Video: 00:00:42 Europe’s space ministers gathered at Space19+ in Seville, Spain in November 2019 have approved ESA’s Hera asteroid mission for construction and launch, as part of the Agency's broader planetary defence initiatives that aim to protect European and world citizens. H...

esa-space-safety

Amateur astronomers: help choose asteroid flybys for Hera

Amateur astronomers around the world are being asked to help the proposed ESA asteroid mission. As well as exploring its final destination – the Didymos binary asteroid system – the Hera spacecraft could potentially fly past one or more bodies on the way. But the mission team req...

esa-space-safety

Planetary Society endorses Hera

Planetary Society endorses Hera The Planetary Society urges ESA's Member States to fund the Hera mission

esa-space-safety

Luxembourg firm enabling peek inside asteroid

ESA’s Juventas is a tiny spacecraft assigned a very big goal. Small enough to fit in an aircraft carry-on bag, this nanosatellite would be carried to deep space by ESA’s proposed Hera mission, before diving down to perform the very first radar probe into the depths of an asteroid...

esa-space-safety

Apollo astronaut champions Hera for planetary defence

Having spent much of the 21st century developing planetary defence techniques, Apollo astronaut Rusty Schweickart is a strong supporter of ESA’s proposed Hera mission. In general, when it comes to asteroid deflection, he says, two spacecraft are better than one.

esa-space-safety

Hera’s radar CubeSat will peer into asteroid’s heart

ESA’s proposed Hera asteroid mission for planetary defence will carry the smallest radar instrument ever flown in space – flying on a separate mini-spacecraft, it will approach two asteroids closer than its mothership and probe deep into their cores.

esa-space-safety

Hera Mars flyby

Image: Hera Mars flyby

sky-and-telescope

Once-in-a-Century Impact Made a “Cold Spot” on the Moon

In watching an impact's aftermath, scientists have confirmed that such large blasts shake up and cool wide swaths of the lunar surface. The post Once-in-a-Century Impact Made a “Cold Spot” on the Moon appeared first on Sky & Telescope .

universe-today

How Diffractive Solar Sails Could Stop a Killer Asteroid at 100 km/s

Asteroids don’t come with a warning label that they might one day hit Earth. While we don’t know of any currently on course to do so, we are finding thousands of new ones each year, and there’s always a potential that one could. We proved a viable technique for dealing with...

universe-today

Scientists Release Details About Moon's New Massive Crater

It's easy to think of the Moon as the static constant companion in the night sky. Its face hasn’t visibly changed in millennia, and always faces us with the same side. But looks can be deceiving, as our closest companion is constantly bombarded by asteroids and comets that make...