The sky on
your birthday.
Supernova 2025rbs in NGC 7331
Fifty million light-years away, a star exploded in galaxy NGC 7331. Light from that supernova, 2025rbs, was first detected by telescopes on Earth on July 14. This is a Type Ia supernova, likely caused by the thermonuclear detonation of a white dwarf star. It is currently the brightest supernova in Earth's sky.
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Released on your day
Space pictures released on your month and day in other years, or a few days either side. Each one is sharp enough to print as a poster.
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The Sun on your day The Sun on 31 July 2025 See it as a poster -
The Earth on your day The Earth on 31 July 2025 · Red Sea See it as a poster -
Released on 31 July 2023 NGC 6652 See it as a poster -
Released on 31 July 2007 Wide-field ground-based astrophoto of the Veil Nebula See it as a poster -
Released on 31 July 2017 The Hockey Stick Galaxy See it as a poster -
Released on 31 July 2017 Spot the cluster See it as a poster -
Released on 31 July 2022 The sun illuminates Earth's limb as the International Space station soared 271 miles above the Pacific Ocean south See it as a poster
In tropical astrology, 31 JUL 2025 falls under Leo (♌). The sign's window runs from 07-23 through 08-22. Leo is anchored by Regulus, the heart of the Lion, twenty-four parsecs from Earth. The Sun was crossing this region of the sky on 31 JUL 2025.
Questions about July 31, 2025
What space photo was released on July 31, 2025?
NASA's Astronomy Picture of the Day for July 31, 2025 was "Supernova 2025rbs in NGC 7331". It's the card at the top of this page.
What was the Moon's phase on July 31, 2025?
A first quarter moon, about 36% lit.
What day of the week was July 31, 2025?
July 31, 2025 was a Thursday, day 212 of the 365 days in 2025.
What did the Sun and the Earth look like on July 31, 2025?
NASA's Solar Dynamics Observatory photographed the Sun that day, and NASA's Terra satellite photographed the whole Earth. Both are on this page, next to the card.
Is it free?
Yes. Seeing, sharing and downloading the card is free, and there's no account to make.