麻豆传媒

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Ben Lomond ski village and wild kangaroos on a quiet winter's day in Tasmania, Australia; Shutterstock ID 1815999107; purchase_order: -; job: -; client: -; other: -

Would a northern hemisphere 鈥渋ce age鈥� trigger one in the south too?

If a northern hemisphere "ice age" is triggered, say due to the Gulf Stream failing, is it inevitable in the southern hemisphere too?

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Big dog meets small dog; Shutterstock ID 2045462630; purchase_order: -; job: -; client: -; other: -

How do dogs recognise that another animal is also a dog? (continued)

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2GA52R4 A woman on the beach at Portrush, Co. Antrim, on Northern Ireland's north coast doing open water swimming in the Atlantic Ocean.

This week鈥檚 new questions

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Black hole discovered off Roman Road, Hereford, UK

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Tom Gauld on the best way to ask a supercomputer for help

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Twisteddoodles on Lab Life, a magazine for the break room

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

Life

Remarkable images show the intricacy and beauty of common plants

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JHPTR7 Bumblebee on Cornflower 'Blue Diadem'.

Environment

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

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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?

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Pink flowering pelargonium turning red.

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

This is a 鈥渟port鈥�, a new variety discovered as a result of genetic mutation, and it is quite common for the mutation to reverse itself - although irritating for horticulturalists propagating variegated plants, say our readers

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

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

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This week鈥檚 new questions

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A non-standard approach to celebrating World Standards Day

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