For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

"Theories involving substantial formation of stars prior to or together with the black hole formation and growth are very unlikely." ...

The smoking gun of the creation of lithium in explosions on white dwarf stars may have been found, in a spike of gamma rays ...

To fly a model rocket, you'll need suitable equipment. That means suitable engines, a sturdy launch pad, a launch system and ...

The aerospace giant says it can revive Mars Sample Return with a leaner, lower-cost approach drawing on proven designs.

"Our work supports both the scientific quest to answer the question 'Are we alone?' and practical efforts to manage the ...

The pH scale is a measure of how acidic or alkaline something is, 1 being highly acidic, 14 being highly alkaline, and 7 ...

"I was surprised to learn that he was a blue-blooded Democrat, who had never contributed to a Republican before." ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

These are the best telescope deals on Amazon Prime Day 2025, running from July 8 to 11. Amazon Prime Day is here! This year marks the first four-day event from Amazon and there will be plenty of deals ...

The JWST could see a 25-35% reduction in operations, and some Hubble instruments may have to fend for themselves.

Canada doesn't have a long history of rocket launches, but that may be about to change.