杏吧原创

Plant microverse. Roots of Arabidopsis thaliana under the fluorescence microscope.

Life

Remarkable images show the intricacy and beauty of common plants

Familiar plants are revealed in exquisite, microscopic detail in these shots from biologist Jan Martinek

JHPTR7 Bumblebee on Cornflower 'Blue Diadem'.

Environment

Gardening with ‘native’ plants isn’t always better for the environment

JANUARY 9, 2014: The vibrant magentas and blues in this Hubble image of the barred spiral galaxy M83 reveal that the galaxy is ablaze with star formation. The galactic panorama unveils a tapestry of the drama of stellar birth and death. The galaxy, also known as the Southern Pinwheel, lies 15 million light-years away in the constellation Hydra. Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA) Acknowledgement: W. Blair (STScI/Johns Hopkins University) and R. O'Connell (University of Virginia) NASA image use policy. NASA Goddard Space Flight Center enables NASA?s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. ...more Date Created:2017-12-08 Center:GSFC Keywords: spiral galaxy M83 Albums: Test Creator:NASA Goddard Location:Greenbelt, MD

What would happen to a galaxy if the black hole at its centre left?

Pink flowering pelargonium turning red.

Why did a piece of pink geranium make red flowers after breaking off?

2A65AYC Woman stroking her Pet dumbo rat

Given the impact of cats, why don鈥檛 we domesticate more rats? (Part 2)

Four cheerful female friends having fun on summer road trip

Which is more efficient when cooling a car, A/C or windows? (Part 2)

Mandatory Credit: Photo by Dasha Petrenko/imageBROKER/Shutterstock (13916956bb) Gym woman doing push up exercises with dumbbells. Strong brunette female doing crossfit workout Various 23afbhbada

This week鈥檚 new questions

A non-standard approach to celebrating World Standards Day

Tom Gauld on after-work drinks

Twisteddoodles on the Ig Nobel prizes

This week's cartoon from Twisteddoodles

Comment

Painting at the top of Mont Blanc

Mathematics

The easy trick to evenly cut a pizza into 5, 7 or any number of slices

Would it be theoretically possible to build a habitable dome on Venus?

Why does a ‘square’ coin sliding down a slope soon fall over?