Artist’s impression of a black hole star (not to scale). The cut-out reveals the central black hole with it surrounding accretion disk. What makes this a black hole star is [...]
According to every experiment, the constants of nature appear to be constant. And this creates a really sticky, nasty, ugly problem for us: it looks like the constants are fine-tuned. [...]
While plate tectonics may not be absolutely necessary for life, they may be necessary for a technological civilization to arise. Habitability may be possible on a static world, but habitability [...]
The Gemini South Telescope captured this image of the interstellar comet 3I/ATLAS as it sped through the inner Solar System. The comet’s coma and tail are growing as it approaches [...]
Protoplanets are celestial objects in the act of forming into full planets within the gas and dust disks surrounding hot, young stars. These objects, often several times the mass of [...]
A new comet approaching from sunward could make a fine dusk appearance in October. Hello. A bright new comet is now emerging from the Sun’s glare at dusk. It all [...]
Three data releases from the recently retired Gaia spacecraft show that far-flung parts of the Milky Way are connected by families of stars born in clusters. Some continue to travel [...]
One possibility to explain the constants of nature is that there’s more than one universe. That we live in a multiverse, with each different universe “sampling” different values of the [...]
This photo of comet C/2020 F3 NEOWISE was taken in July 2020. There’s no doubt that comets have struck Earth in the past, and some have exploded in the air [...]
Blue Origin is committed to making a permanent human presence in space a reality. To this end, they have developed the New Shepard and New Glenn rockets to send payloads [...]