Aerospace & Defence
'Atmospheric disequilibrium' helps spot exoplanetary life
As NASA’s James Webb Space Telescope and other new giant telescopes come online they will need novel strategies to look for evidence of life on other planets. A University of Washington study has found a simple approach to look for life that might be more promising than just looking for oxygen. The paper, published in Science Advances, offers a recipe for providing evidence that a distant planet harbours life.
FAPESP's contribution to the top physics breakthroughs of 2017
Researchers supported by FAPESP participated in three of the “Top Ten Breakthroughs in 2017” listed by the journal Physics World. The ten breakthroughs were chosen by Physics World editors from a shortlist based on popularity with the journal’s readers. Its Breakthrough of the Year Award went to the first-ever multimessenger observation of a merger of two neutron stars involving gravitational waves.
A model for three types of extreme-energy space particles
New model connects the origins of very high-energy neutrinos, ultrahigh-energy cosmic rays, and high-energy gamma rays with black-hole jets embedded in their environments. One of the biggest mysteries in astroparticle physics has been the origins of ultrahigh-energy cosmic rays, very high-energy neutrinos, and high-energy gamma rays. Now, a new theoretical model reveals that they all could be shot out into space after cosmic rays are ac...
Studying middle-aged Sun by tracking motion of mercury
Like the waistband of a couch potato in midlife, the orbits of planets in our solar system are expanding. It happens because the Sun’s gravitational grip gradually weakens as our star ages and loses mass. Now, a team of NASA and MIT scientists has indirectly measured this mass loss and other solar parameters by looking at changes in Mercury’s orbit. The new values improve upon earlier predictions by reducing the amount of uncerta...
Powering up human reach for the Red Planet
NASA and its partners will host a news conference at noon EST (9 a.m. PST) Thursday, 18th January, at the National Atomic Testing Museum in Las Vegas, to discuss a recent experiment involving a new power source that could provide the safe, efficient and plentiful energy needed for future robotic and human space exploration missions. Audio of the news conference and presentation slides will stream live on NASA’s website.
Exoplanet Explorers discover five-planet system
In its search for exoplanets, NASA's Kepler telescope trails behind Earth, measuring the brightness of stars that may potentially host planets. The instrument identifies potential planets around other stars by looking for dips in the brightness of the stars that occur when planets cross in front of, or transit, them. Typically, computer programs flag the stars with these brightness dips, then astronomers look at each one and decide whether or not...
Aerospace subcontractor expands machining centre
A seventh 5-axis machining centre has been installed at Preston-based, tier-2 aerospace subcontractor, TGM, primarily to cope with increasing volumes of Airbus A350 work. Two years ago, each month the firm was delivering four port and starboard aircraft wing sets comprising 20 parts each, whereas today 10 sets per month are required and the number will climb further over the next two years.
Pulsars could hide planets hosting alien life
It is theoretically possible that habitable planets exist around pulsars - spinning neutron stars that emit short, quick pulses of radiation. According to research, such planets must have an enormous atmosphere that converts the deadly x-rays and high energy particles of the pulsar into heat. The results, from astronomers at the University of Cambridge and Leiden University, are reported in the journal Astronomy & Astrophysics.
Base metal technology enhances ceramic defence and aerospace portfolio
KEMET, supplier of electronic components, has announced that the Defense Logistics Agency (DLA) has accepted KEMET’s qualification of C0G and BP dielectrics to MIL-PRF-32535 ‘M’ and ‘T’ levels making them the first base metal electrode (BME) MLCCs qualified for defence and aerospace applications. MIL-PRF-32535 is the DLA’s first capacitor specification for defence and aerospace that capitalises on Base Metal El...
Discovering the eighth planet circling distant star
Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90, a Sun-like star 2,545 light years from Earth.