Category Astronomy/Space

A mile-long sediment core drilled by the International Ocean Discovery Program helped researchers uncover how the Chicxulub crater formed.
Credit: International Ocean Discovery Program

Extremely strong vibration during large impacts, landslides and earthquakes allow rock to flow. About 99% of the Sun’s energy emitted as neutrinos is produced through nuclear reaction sequences initiated by proton-proton (pp) fusion in which hydrogen is converted into helium, say scientists including physicist Andrea Pocar at the University of Massachusetts Amherst. Today they report new results from Borexino, one of the most sensitive neutrino detectors on the planet, located deep beneath Italy’s Apennine Mountains.

“Neutrinos emitted by this chain represent a unique tool for solar and neutrino physics,” the...

This vivid picture of an active star forming region — NGC 2467, otherwise known as the Skull and Crossbones nebula — is as sinister as it is beautiful. This image of dust, gas and bright young stars, gravitationally bound into the form of a grinning skull, was captured with the FORS instrument on ESO’s Very Large Telescope (VLT). Whilst ESO’s telescopes are usually used for the collection of science data, their immense resolving power makes them ideal for capturing images such as this — which are beautiful for their own sake.
Credit: ESO

FORS2, an instrument mounted on ESO’s Very Large Telescope, has observed the active star-forming region NGC 2467 – sometimes referred to as the Skull and Crossbones Nebula...

Hubble Space Telescope photo of Mars taken when the planet was 50 million miles from Earth on May 12, 2016.
Credit: NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Bell (ASU), and M. Wolff (Space Science Institute)

Model describing conditions under which oxygenated water could exist on Mars challenges traditional beliefs about planet’s habitability. A team led by scientists at Caltech and the Jet Propulsion Laboratory (JPL), which Caltech manages for NASA, has calculated that if liquid water exists on Mars, it could – under specific conditions – contain more oxygen than previously thought possible. According to the model, the levels could even theoretically exceed the threshold needed to support simple aerobic life.

That finding runs contrary to the current, accepted view of Mars and i...

One of NASA’s twin MarCO spacecraft took this image of Mars on October 2 — the first time a CubeSat, a kind of low-cost, briefcase-sized spacecraft — has done so.
Credit: NASA/JPL-Caltech

NASA’s MarCO mission was designed to find out if briefcase-sized spacecraft called CubeSats could survive the journey to deep space. Now, MarCO – which stands for Mars Cube One – has Mars in sight. One of the twin MarCO CubeSats snapped this image of Mars on Oct. 3 – the first image of the Red Planet ever produced by this class of tiny, low-cost spacecraft. The two CubeSats are officially called MarCO-A and MarCO-B but nicknamed “EVE” and “Wall-E” by their engineering team.

A wide-angle camera on top of MarCO-B produced the image as a test of exposure settings...