91色情片

Twisteddoodles charts a rapid decline

This week's cartoon from Twisteddoodles

Example of a graph with an arch-shaped peak

Space

Join the hunt for clouds high up in the Martian atmosphere

What are these soft white balls (pictured) found under a drain cover?

DNMR0A Giraffe silhouette captured at sunset in Kruger blended with a full moon captured when rising.

Without moonlight, would life on Earth be any different?

Why do little children run everywhere instead of walking? (part 3)

Kid with jet pack pretend to be superhero. Child playing in summer. Kid having fun outdoors. Child pilot against summer sky background. Success, leader and winner concept. Imagination, freedom concept; Shutterstock ID 450428614; purchase_order: -; job: -; client: -; other: -

This week鈥檚 new questions

Dare you enter the dark and disturbing world of morbid curiosity?

View of the Valle del Diavolo, near Monterotondo Marittimo (GR). In the center, the plumes of smoke from the "Lagone", the only remaining example of the exploitation of boric acid begun in Monterotondo Marittimo in 1812, today transformed into an extraction and injection well of the "Monterotondo Marittimo 1" geothermal power plant.

Environment

A gift from nature: Geothermal energy in Tuscany’s Valle del Diavolo

Twisteddoodles on why dogs scent mark

Space

Caroline Herschel’s pioneering astronomy is brought into the spotlight

Herschel's discovery in the 18th century of 560 missing stars is the focus of new audio-visual work from photographic artist Lynda Laird

Life

How to grow tremendous tulips

What has been the most successful animal ever?

In water sports, should fingers be pressed together to increase drag?

This week鈥檚 new questions