Watch the stars and from them learn. To the Master's honor all must turn, Each in its track, without a sound, Forever tracing Newton's ground

— Albert Einstein

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APOD - 5 hours 27 min ago


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago

One of the all-time historic skyscapes occured in July 1054, when the


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago

What's that green streak in front of the Andromeda galaxy?


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago

Why is this nebula so complex?


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago

What are these gigantic blue arcs near the Andromeda Galaxy (M31)?


Categories: Astronomy, NASA

<p><a href="https://apod.nasa.gov/apod

APOD - 5 hours 27 min ago

What's that strange light down the road?


Categories: Astronomy, NASA

Are these names of real spacecraft or fictional ones? Test your sci-fi smarts in our quiz!

Space.com - 5 hours 27 min ago
Both science fiction and real life have some interesting spacecraft names, sometimes borrowing from each other. This quiz will test to see if you know the difference.
Categories: Astronomy

Light pollution is encroaching on observatories around the globe – making it harder for astronomers to study the cosmos

Space.com - 6 hours 27 min ago
The rate of human-produced light is increasing in the night sky by as much as 10% per year, making it difficult for astronomers to study the night sky.
Categories: Astronomy

'Ice cube' clouds discovered at the galaxy's center shouldn't exist — and they hint at a recent black hole explosion

Space.com - 7 hours 27 min ago
Twin orbs of superhot plasma at the Milky Way's center known as the "Fermi bubbles" contain inexplicable clouds of cold hydrogen, new research reveals.
Categories: Astronomy

August full moon 2025 captivates skywatchers worldwide as Sturgeon Moon lights up the sky (photos)

Space.com - 11 hours 12 min ago
The 2025 full 'Sturgeon Moon' graced the night sky on Aug. 9.
Categories: Astronomy

See Saturn and the moon in a stunning close encounter on Aug. 11

Space.com - 11 hours 27 min ago
Spot Saturn near the moon on Aug. 11! See them with the naked eye and learn what to expect through a telescope.
Categories: Astronomy

Planning for the Ultimate Space Mission

Universe Today - 12 hours 9 min ago

What if we could send a probe smaller than a paperclip, yes a paperclip to visit a black hole? It sounds impossible, but one scientist believes this extraordinary mission could become reality within our lifetimes. Astrophysicist Cosimo Bambi has outlined a bold plan to launch microscopic spacecraft toward the nearest black hole, potentially revolutionising our understanding of physics and Einstein's theory of general relativity. While the technology doesn't exist today and would cost trillions, within the next 20-30 years it could become a reality!

Categories: Astronomy

NASA Selects Six Companies to Provide Orbital Transfer Vehicle Studies

Universe Today - 12 hours 9 min ago

NASA has selected six companies to produce studies focused on lower-cost ways to launch and deliver spacecraft of various sizes and forms to multiple, difficult-to-reach orbits. The firm-fixed-price awards comprise nine studies with a maximum total value of approximately $1.4 million.

Categories: Astronomy

Astronomers Spot the Earliest Confirmed Black Hole at Cosmic Dawn

Universe Today - 12 hours 9 min ago

An international team of astronomers led by The University of Texas at Austin’s Cosmic Frontier Center has confirmed the most distant black hole ever observed. Located at the center of the galaxy CAPERS-LRD-z9, this black hole existed 13.3 billion years ago, just 500 million years after the Big Bang. As such, it provides a unique opportunity to study the structure and evolution of the period known as "Cosmic Dawn."

Categories: Astronomy

New Research Explores Venus’ Violent Past

Universe Today - 12 hours 9 min ago

Venus, often called Earth's twin, remains one of the most mysterious planets in our Solar System. While it's similar in size to Earth, Venus spins incredibly slowly and backwards compared to other planets. It also lacks a moon, unlike Earth and Mars. Now, new research explores whether a massive asteroid impact in Venus's early history could explain these puzzling characteristics.

Categories: Astronomy

Mixing Regolith With Polymer Saves Mass For 3D Printing

Universe Today - 12 hours 9 min ago

3D printing is going to be a critical technology in space exploration, both for its ability to create almost any object, but also because it can utilize in-situ resources, at least in part. However, the more of those space resources are used in a print, the more the mechanical properties change from that on Earth, leading to problems with tensile or compressive strength. But a new paper from researchers at Concordia University hit a new milestone of how much lunar regolith can be used in a mixed feedstock for additive manufacturing, making it possible to use even more locally sourced material, and saving more launch cost, than ever before.

Categories: Astronomy

Hubble Captures Stunning View of Third Interstellar Visitor

Universe Today - 12 hours 9 min ago

A mysterious visitor from another star system is putting on a spectacular show as it streaks through our Solar System, shedding tons of ancient dust and revealing secrets from the depths of interstellar space. Using the Hubble Space Telescope, a team of astronomers have captured unprecedented details of 3I/ATLAS—only the third confirmed object from beyond our Solar System as it awakens under our Sun's warmth, offering a rare glimpse into alien worlds billions of kilometres away.

Categories: Astronomy

A 36 Billion Solar Mass Black Hole Detected Thanks To Gravitational Lensing

Universe Today - 12 hours 9 min ago

Astronomers from Brazil and the UK have detected what could be the most massive black hole ever found. It's about 36 billion solar masses, which is a stunning 10,000 times more massive than Sagittarius A*, the monstrous supermassive black hole at the heart of the Milky Way. This behemoth is about 5 billion light-years away.

Categories: Astronomy

This White Dwarf Merged With Another Star To Form An Ultra-Massive White Dwarf

Universe Today - 12 hours 9 min ago

White dwarfs are the stellar remnants left behind by stars after they run out of hydrogen and cease fusion. Only a small number of them are "high-mass white dwarfs" more massive than the Sun. New research indicates that these massive white dwarfs are the result of mergers.

Categories: Astronomy