91色情片

This sequence of artist's illustrations shows how a black hole can devour a bypassing star. 1. A normal star passes near a supermassive black hole in the center of a galaxy. 2. The star's outer gasses are pulled into the black hole's gravitational fie

This week鈥檚 new questions

Do black holes look doughnut-shaped when viewed in all directions? And what are the pros and cons of using carbon dioxide in tyres?

91色情片

Kim Kardashian has wrangled an invite to NASA HQ. Can we get one too?

Technology

Remarkable robot images provide a vision of the future

Twisteddoodles: ‘I’m a little beaker, short and stout…’

Tom Gauld on a portal to an alternate universe

This image may not be used on retail merchandise in the U.S.A. Leonid meteor and Pleiades star cluster. Optical image of a Leonid meteor (bright streak) to the left of the Pleiades star cluster. Meteors, or shooting stars, are tiny particles of dust which enter the Earth's atmosphere with speeds of 35-95 kilometres per second. Air resistance heats the particles, making them visible as streaks of light. The Leonid meteor shower occurs annually around 17th November when the Earth crosses the path of debris produced by the Tempel-Tuttle 1886 I comet. The Pleiades (Seven Sisters) star cluster contains about 3000 stars. It is about 390 light years from Earth in the constellation Taurus.

Space

Here’s how to spot the Leonid meteor shower this month

Disappointed woman packing for a journey: she is standing in front of her suitcase overfilled with clothes, travel and vacations concept; Shutterstock ID 2314449417; purchase_order: -; job: -; client: -; other:

How do you get the most clothes into a suitcase?

Quantum correlation- 3d rendered image of quantum entanglement. Abstract background. Quantum mechanics background. Atomic structure, large collider, CERN concept. Muon Spinning particle, muon g-2, Higgs boson light speed neon stripes abstract image. Collision of Particles in the Abstract Collider.

What happens if an entangled particle falls into a black hole?

BCM7JY Rainbow above rolling farmland on the edges of Dartmoor National Park Devon England Spring April 2009. Image shot 2009. Exact date unknown.

Why do rainbows refract light into many colours but not clouds? Part 2

2C0KN5C Funny husky dog in glasses lying on the grass in a summer park

Is short-sightedness found in other animals? Part 3

An optometrist tells us how we might test a cheetah鈥檚 eyesight, and dog owners share their stories of their pets鈥� short-sightedness

This week鈥檚 new questions

91色情片

Is a robot programmed to prank you annoying? Yes

Life

Cats revealed in all their glory in stunning new photographs

Twisteddoodles on an unexpected reading of the data