鶹ý

Last word

鶹ý's popular Last Word series gives readers the opportunity to answer each other's questions about everyday science phenomena, from the shape of scones to the evolutionary history of toenails. To answer a question or ask a new one, email lastword@newscientist.com

This mosaic of Mars is a compilation of images captured by the Viking Orbiter 1. The center of the scene shows the entire Valles Marineris canyon system, more than 2,000 miles (3,000 kilometers) long, 370 miles (600 kilometers) wide and 5 miles (8 kilometers) deep, extending from Noctis Labyrinthus, the arcuate system of graben to the west, to the chaotic terrain to the east.

Last Word

If humans colonised Mars, how would they calculate time? (Part 2)

Regulars

HCNBCF THOR: THE DARK WORLD, Chris Hemsworth as Thor, 2013. ph: Jay Maidment/?Walt Disney Studios/courtesy Everett Collection

Last Word

Could you make a machine that “flew” like Thor’s hammer in the comics?

Regulars

HDTNNH Crab-eating macaca in Thailand ; specie Macaca fascicularis family of Cercopithecidae

Last Word

This week’s new questions

Regulars

Issue no. 3447 published 15 July 2023

鶹ý issue 3447 cover
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