Earth's oldest stromatolites and the search for life on Mars

The earliest morphological traces of life on Earth are often highly controversial, both because non-biological processes can produce relatively similar structures and because such fossils have often been subjected to advanced ...

Zimbabwe launches first nano-satellite

Zimbabwe on Monday announced the launch of its first nano-satellite into space in a bid to help collect data to monitor disasters, boost agriculture and enhance mineral mapping.

When black holes collide they also produce neutrinos

Ever since astronomers first detected ultra high energy neutrinos coming from random directions in space, they have not been able to figure out what generates them. But a new hypothesis suggests an unlikely source: the mergers ...

Early planetary migration can explain missing planets

A new model that accounts for the interplay of forces acting on newborn planets can explain two puzzling observations that have cropped up repeatedly among the more than 3,800 planetary systems cataloged to date.

Measuring sunlight from space, on a chip

For 40 years, people have used space-based sensors to measure the amount of light coming from the sun, which gives scientists insight into climate change on Earth.

Hubble inspects two galaxies connected by a luminous bridge

This image from the NASA/ESA Hubble Space Telescope shows two of the galaxies in the galactic triplet Arp 248—also known as Wild's Triplet—which lies around 200 million light-years from Earth in the constellation Virgo.

New radio-loud high-redshift quasar discovered

European astronomers report the detection of a new powerful radio-loud quasar at a redshift of about 5.32. The newfound object, designated PSO J191.05696+86.43172, turns out to be one of the brightest radio quasars identified ...

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