Calculations Show Mercury Has a Thin but Dense Crust
Mercury is the closest planet to the Sun, and very little is really known about this hot rocky orb. So far, only two space probes have ever studied Mercury. NASA’s Mariner 10 flew past the planet three times between 1973 and 1974. The flybys allowed scientists to map about half the planet, discover its thin […]
NASA Launches TESS the Exoplanet Hunter
The Transiting Exoplanet Survey Satellite, or TESS, will soon join NASA’s fleet of exoplanet-hunters that, so far, includes the Kepler, Hubble, and the Spitzer Space Telescopes. TESS was launched at 2251 UTC on April 18, 2018, from the Cape Canaveral Air Force Station in Florida. The space observatory is expected to survey about 85% of […]
SWARM Tracks the Ocean’s Magnetic Field
Earth’s magnetic fields protect us from deadly radiation from high-energy solar particles and cosmic rays. Most of this protective shield is produced by a vast amount of hot molten iron swirling around in our planet’s outer core. But there’s another little-known contributor to our geomagnetic field. It’s the salty and electrically conductive ocean. When salty ocean […]
ESA Mars Orbiter Gets A Software Upgrade
If you own any kind of computing device, whether it’s a smartphone, tablet, laptop or desktop computer, you know sooner or later that you’re going to have to update or install new software to keep it functioning. The same thing can also be said about spacecraft that have been in service for a while. The […]
Radio Telescope Finds No Signs of Alien Life in Interstellar Object
Soon after the October 2017 discovery of Oumuamua, the first confirmed interstellar object to visit our solar system, rumors and conspiracy theories began popping up all over the Internet. Because of its suspected origins, as well as its odd, flat, cigar-shaped appearance, word started to spread that the object was actually an alien interstellar space […]
Could a Net and a Harpoon Cleanup Space Junk?
The Chinese space station Tiangong 1’s recent fall to Earth, in an unguided re-entry, has raised discussion again on how to address the nagging problem of space junk or orbital debris circling our planet. The website for NASA’s Orbital Debris Program Office indicates that more than 21,000 orbital debris, larger than 10 cm, are known […]
Discovered: Most Distant Star Seen (So Far)
The 2016 discovery of the most distant star ever seen – so far – has been outlined in a new study published in the journal Nature Astronomy. According to the study, the star, formally named 1) but nicknamed Icarus, is located about 9 billion light-years from Earth. This means light from the star started toward […]
Life May Exist Among the Clouds of Venus
The search for extraterrestrial life has included examining the possibilities within and outside of the solar system. It has been thought that Mars and a couple of the moons of Saturn and Jupiter may hold the chance of having ET life. It’s also thought by some that a number of Earthlike extrasolar or exoplanets residing […]
A Galaxy is Missing Its Dark Matter
Scientists say that the invisible and mysterious dark matter makes up about 27% of all material in the universe. Regular or normal matter that you see and touch every day takes up 5% and the remaining 68% comes from an enigmatic form of energy called dark energy. According to NASA, dark matter serves as a type of […]
Newly Discovered Exoplanet Resembles Planet Mercury
A newly found exoplanet called K2-229b is about 20% larger and 2.5 times more massive than Earth. But the international team of astronomers, who recently discovered it, say it’s more like a super-charged version of our solar-system’s innermost planet, Mercury. They describe the planet as hot, metallic, made of iron and nickel, circles an orange K-dwarf […]