Friday, October 29, 2021

A Satellite in Orbit Spies Another Satellite Being Launched Into Space

10/29/2021

NEWS & FEATURES

A satellite in orbit spies another satellite being launched into space
NASA/Bill Ingalls

A satellite in orbit spies another satellite being launched into space

As the latest Landsat Earth-observing spacecraft roared off the launchpad, a weather satellite was watching from 22,400 miles away.

Snapshot: Cassiopeia A and the elements lurking within it
NASA/CXC/RIKEN/T. SATO ET AL.; NUSTAR: NASA/NUSTAR

Snapshot: Cassiopeia A and the elements lurking within it

The Chandra X-ray Observatory captured this technicolor image of a stunning supernova remnant.

Starbirth Puzzle 
Soyuz 23: How two cosmonauts almost died after landing back on Earth
Roscosmos

Soyuz 23: How two cosmonauts almost died after landing back on Earth

Forty-five years ago, an unplanned splashdown forced two cosmonauts to battle hazardous weather that left their capsule bobbing in a frozen lake for nearly half a day.


Earth's equatorial bulge shapes the planet's physics
Anton Balazh/Shutterstock

Earth's equatorial bulge shapes the planet's physics

Meteorologists, oceanographers and snipers have to account for this deformation.

Ask Astro: What would the Milky Way look like from the Andromeda Galaxy?
Astronomy: Roen Kelly

Ask Astro: What would the Milky Way look like from the Andromeda Galaxy?

From our perspective in the Milky Way, we see the Andromeda Galaxy almost — but not quite — edge on. At what angle do the inhabitants of Andromeda see our galaxy?

OBSERVING

The sky this week
Miguel Claro

The sky this week

Your daily digest of celestial events coming soon to a sky near you.

PICTURE OF THE DAY

Nearby spiral
Joe Petick from Mentor, Ohio

Nearby spiral

The Triangulum Galaxy, also known as Messier 33, is the third-largest member of the Local Group, a collection of nearly 50 galaxies that the Milky Way and the Andromeda Galaxy are part of. The galaxy’s name comes from its location in the tiny northern constellation Triangulum.


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