What Is Casting Dark Shadows Across 36,000 Light-years Of Space In This Hubble Space Telescope Image?

Wed. Oct. 30: We'll be closed tonight due to clouds. We'll try again next week!

Reblog Vs. Repost

In short: reblogging is awesome. Reposting isn't.

Calling all geology and space lovers!

NASA's Perseverance rover has been collecting rock samples on Mars for 4 years now, and already there are some exciting finds! Check out the article here:

Mare Cognitum ("The Sea that has Become Known") with Kuiper crater at the center // l'AstroVan

Mare Cognitum ("The Sea that has Become Known") is the landing sites of several lunar missions. Ranger 7 (1964) impacted here after its mission was finished; Surveyor 3 (1967) and Apollo 12 (1969) landed near its northern shore; and Apollo 14 (1971) landed near this mare as well.

Kuiper crater is named after the Dutch-American astronomy Gerard Kuiper (1905-1973), the father of modern planetary science

This striking image captures the interacting galaxy pair known as Arp-Madore 2339-661, so named because they belong to the Arp-Madore catalogue of peculiar galaxies. However, this particular peculiarity might be even odder than first meets the eye, as there are in fact three galaxies interacting here, not just two. 

The two clearly defined galaxies are NGC 7733 (smaller, lower right) and NGC 7734 (larger, upper left). The third galaxy is currently referred to as NGC 7733N, and can actually be spotted in this picture if you look carefully at the upper arm of NGC 7733, where there is a visually notable knot-like structure, glowing with a different colour to the arm and obscured by dark dust. 

Credit: ESA/Hubble & NASA

Picture of the Day!

NASA's James Webb Space Telescope has captured a stunning image of the iconic Pillars of Creation, a region where new stars are being born within thick clouds of gas and dust. The three-dimensional pillars resemble towering rock formations, yet they are much more porous. Composed of cool interstellar gas and dust, they sometimes appear semi-transparent in near-infrared light.

Top Study Tips from NASA

Study smarter this school year! We asked scientists, engineers, astronauts, and experts from across NASA about their favorite study tips – and they delivered. Here are a few of our favorites:

Study with friends

Find friends that are like-minded and work together to understand the material better. Trading ideas with a friend on how to tackle a problem can help you both strengthen your understanding.

Create a study environment

Find a quiet space or put on headphones so you can focus. You might not be able to get to the International Space Station yet, but a library, a study room, or a spot outside can be a good place to study. If it’s noisy around you, try using headphones to block out distractions.

Take breaks

Don’t burn yourself out! Take a break, go for a walk, get some water, and come back to it.

Looking for more study tips? Check out this video for all ten tips to start your school year off on the right foot!

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The Dolphin Head Nebula (Sh2-308, right) and Sh2-303 (left) // Jim Thommes

3/19/25: So far it looks likely to cloud up, but we'll wait a few more hours before deciding whether to hold our public night.

Video of the Day!

NASA’s next mission to the Moon will carry LEXI (the Lunar Environment Heliospheric X-ray Imager), an instrument which will provide the first-ever global view of the magnetic field that shields Earth from solar radiation!