NGC 6727, Stardust

M104, Sombrero Galaxy

Supermassive Star Eta Carinae ©

Some useful FYI guides! We all love useful info when it comes to our universe

Prepare for visual overload! Today, 19 images of nearby face-on spiral galaxies by the James Webb Space Telescope were released. This marks the first time we’ve observed these galaxies in high-resolution near- and mid-infrared light. What do they uniquely show?

The galaxies’ clearly defined spiral arms are brimming with millions of stars. Their centers may be filled with old star clusters or active supermassive black holes. And Webb has shown us where stars that haven’t yet fully formed are still encased in the gas and dust that feed their growth, like bright red seeds.

Webb’s new images are part of a large, long-standing project, the Physics at High Angular resolution in Nearby GalaxieS (PHANGS) program, and will be added to images and data from the Hubble Space Telescope, the Very Large Telescope’s Multi-Unit Spectroscopic Explorer, and the Atacama Large Millimeter/submillimeter Array. Now, astronomers around the world can examine these galaxies carefully in ultraviolet, visible, radio—and now near- and mid-infrared light.

Skip to the bottom of the page to look at each galaxy: https://webbtelescope.pub/3SxNSaU

ALT TEXT: Nineteen Webb images of face-on spiral galaxies are combined in a mosaic. Some appear within squares, and others horizontal or vertical rectangles. Many galaxies have blue hazes toward the centers, and all have orange spiral arms. Many have clear bar shaped-structures at their centers, but a few have spirals that begin at their cores. Some of the galaxies’ arms form clear spiral shapes, while others are more irregular. Some of the galaxies’ arms appear to rotate clockwise and others counterclockwise. Most galaxy cores are centered, but a few appear toward an image’s edge. Most galaxies appear to extend beyond the captured observations. The galaxies shown, listed in alphabetical order, are IC 5332, NGC 628, NGC 1087, NGC1300, NGC 1365, NGC 1385, NGC 1433, NGC 1512, NGC 1566, NGC 1672, NGC 2835, NGC 3351, NGC 3627, NGC 4254, NGC 4303, NGC 4321, NGC 4535, NGC 5068, and NGC 7496.

The Mermaid Nebula Supernova Remnant Image Credit: Neil Corke

Large Magellanic Fireworks by NASA's Marshall Space Flight Center

Hubble image of Arp 142 by Hubble Space Telescope / ESA

Cosmic Fireworks by Hubble Space Telescope / ESA

Galaxies

Unimaginably huge collections of gas, dust, stars, and even planets, galaxies come in many shapes and sizes. Some are spirals, such as our own galaxy, others are like squashed balls, and some have no shape at all.

From the book Knowledge Encyclopedia Science! (DK)

Setting Sail to Travel Through Space: 5 Things to Know about our New Mission

Our Advanced Composite Solar Sail System will launch aboard Rocket Lab’s Electron rocket from the company’s Launch Complex 1 in Māhia, New Zealand no earlier than April 23, at 6 p.m. EDT. This mission will demonstrate the use of innovative materials and structures to deploy a next-generation solar sail from a CubeSat in low Earth orbit.

Here are five things to know about this upcoming mission:

1. Sailing on Sunshine

Solar sails use the pressure of sunlight for propulsion much like sailboats harness the wind, eliminating the need for rocket fuel after the spacecraft has launched. If all goes according to plan, this technology demonstration will help us test how the solar sail shape and design work in different orbits.

2. Small Package, Big Impact

The Advanced Composite Solar Sail System spacecraft is a CubeSat the size of a microwave, but when the package inside is fully unfurled, it will measure about 860 square feet (80 square meters) which is about the size of six parking spots. Once fully deployed, it will be the biggest, functional solar sail system – capable of controlled propulsion maneuvers – to be tested in space.

3. Second NASA Solar Sail in Space

If successful, the Advanced Composite Solar Sail System will be  the second NASA solar sail to deploy in space, and not only will it be much larger, but this system will also test navigation capabilities to change the spacecraft’s orbit. This will help us gather data for future missions with even larger sails.

4. BOOM: Stronger, Lighter Booms

Just like a sailboat mast supports its cloth sails, a solar sail has support beams called booms that provide structure. The Advanced Composite Solar Sail System mission’s primary objective is to deploy a new type of boom. These booms are made from flexible polymer and carbon fiber materials that are stiffer and 75% lighter than previous boom designs. They can also be flattened and rolled like a tape measure. Two booms spanning the diagonal of the square (23 feet or about 7 meters in length) could be rolled up and fit into the palm of your hand!

5. It’s a bird...it’s a plane...it’s our solar sail!

About one to two months after launch, the Advanced Composite Solar Sail System spacecraft will deploy its booms and unfurl its solar sail. Because of its large size and reflective material, the spacecraft may be visible from Earth with the naked eye if the lighting conditions and orientation are just right!

To learn more about this mission that will inform future space travel and expand our understanding of our Sun and solar system, visit https://www.nasa.gov/mission/acs3/.

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