It turns out you don’t need a brain to sleep. Source: https://www.livescience.com/sleep-brain-evolution-hydra.html
Tag: hydra
The 8-year cycle and 5 petals of Venus
A word about the 8-year cycle of Venus in our sky and about the “pentagram” of Venus, a highly noticeable rhythm in the motion of Venus as viewed from an Earth-centered perspective. Source: https://earthsky.org/astronomy-essentials/five-petals-of-venus…
Virgo? Here’s your constellation
The constellation Virgo the Maiden fully returns to the early evening sky – with her feet planted on the eastern horizon – in early May. Source: https://earthsky.org/astronomy-essentials/virgo-heres-your-constellation…
Cancer? Here’s your constellation
Here’s how to find the constellation Cancer in your sky. Plus Cancer’s place in sky history, lore and science. Source: https://earthsky.org/astronomy-essentials/cancer-heres-your-constellation…
Spiral galaxy in profile
Hubble Telescope view of a spiral galaxy – called NGC 3717 – oriented sideways. Source: https://earthsky.org/todays-image/spiral-galaxy-in-profile-image…
Hubble snaps spiral’s profile
The NASA/ESA Hubble Space Telescope sees galaxies of all shapes, sizes, luminosities and orientations in the cosmos. Sometimes, the telescope gazes at a galaxy oriented sideways—as shown here. The spiral galaxy featured in this Hubble image is called NGC 3717, and it is located about 60 million light-years away in the constellation of Hydra (the Sea Serpent). Source: https://phys.org/news/2019-10-hubble-snaps-spiral-profile.html…