The Pressure Inside Every Proton is 10x That Inside Neutron Stars Neutron stars are famous for combining a very high-density with a very small radius. As the remnants of massive stars that have undergone gravitational collapse, the interior of a neutron star is compressed to the point where they have similar pressure conditions to atomic nuclei. Basically, they become so dense that they experience the same amount of internal pressure as the equivalent of 2.6 to 4.1 quadrillion Suns! In spite of that, neutron stars have nothing on protons, according to a recent study by scientists at the Department of Energy’s Thomas Jefferson National AcceleratorRead More →

NASA Cubesat Takes a Picture of the Earth and Moon In 1990, the Voyager 1 spaceprobe took a picture of Earth when it was about 6.4 billion km (4 billion mi) away. In this image, known as the “pale blue dot“, Earth and the Moon appeared as mere points of light because of the sheer distance involved. Nevertheless, it remains an iconic photo that not only showed our world from space, but also set  long-distance record. As it turns out, NASA set another long-distance record for CubeSats last week (on May. 8th, 2018) when a pair of small satellites called Mars Cube One (MarCO) reached aRead More →

On 21 May 2018, the Chinese space agency will launch the relay satellite Chang’e 4 to an orbit behind the Moon. On board will be a Dutch radio antenna, the Netherlands Chinese Low-Frequency Explorer (NCLE). The radio antenna is the first Dutch-made scientific instrument to be sent on a Chinese space mission, and it will open up a new chapter in radio astronomy. The is instrument developed and built by engineers from ASTRON, the Netherlands Institute for Radio Astronomy in Dwingeloo, the Radboud Radio Lab of Radboud University in Nijmegen, and the Delft-based company ISIS. With the instrument, astronomers want to measure radio waves originatingRead More →

Are Mysterious Fast Radio Bursts Coming From the Collapse of Strange Star Crusts? Fast Radio Bursts (FBRs) have fascinated astronomers ever since the first one was detected in 2007. This event was named the “Lorimer Burst” after it discoverer, Duncan Lorimer from West Virginia University. In radio astronomy, this phenomenon refers to transient radio pulses coming from distant cosmological sources, which typically last a few milliseconds on average. Over two dozen events have been discovered since 2007 and scientists are still not sure what causes them – though theories range from exploding stars and black holes to pulsars and magnetars. However, according to a newRead More →

There was Evidence for Europa’s Geysers Hiding in Plain Sight in Old Spacecraft Data From 1997 Jupiter’s moon Europa continues to fascinate and amaze! In 1979, the Voyager missions provided the first indications that an interior ocean might exist beneath it’s icy surface. Between 1995 and 2003, the Galileo spaceprobe provided the most detailed information to date on Jupiter’s moons to date. This information bolstered theories about how life could exist in a warm water ocean located at the core-mantle boundary. Even though the Galileo mission ended when the probe crashed into Jupiter’s atmosphere, the spaceprobe is still providing vital information on Europa. After analyzingRead More →

Gaia Turns Up 13,928 White Dwarfs Nearby the Sun, Including Several Formed Through Mergers In 2013, the European Space Agency (ESA) deployed the Gaia mission, a space observatory designed to measure the positions of movements of celestial bodies. For the past four years, Gaia has been studying distant stars, planets, comets, asteroids, quasars and other astronomical objects, and the data it has acquired will be used to construct the largest and most precise 3D space catalog ever made, totaling 1 billion objects. The second release of Gaia data, which took place on April 25th, 2018, has already resulted in a number of impressive discoveries. TheRead More →

Weekly Space Hangout: May 16, 2018: Ethan Siegel’s Treknology: The Science of Star Trek from Tricorders to Warp Drive Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Paul M. Sutter (pmsutter.com / @PaulMattSutter) Dr. Kimberly Cartier (KimberlyCartier.org / @AstroKimCartier ) Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg & ChartYourWorld.org) Special Guests: Ethan Siegel is the author of the new book, Treknology: The Science of Star Trek from Tricorders to Warp Drive. In his book, Ethan examines over 25 items from the Star Trek universe, describes their underlying science, and lets his readers know how close we are to having many of these iconic items today. Ethan isRead More →

ALMA and VLT Find Evidence for Stars Forming Just 250 Million Years After Big Bang Astronomers have used observations from the Atacama Large Millimeter/submillimeter Array (ALMA) and ESO’s Very Large Telescope (VLT) to determine that star formation in the very distant galaxy MACS1149-JD1 started at an unexpectedly early stage, only 250 million years after the Big Bang. This discovery also represents the most distant oxygen ever detected in the Universe and the most distant galaxy ever observed by ALMA or the VLT. The results will appear in the journal Nature on 17 May 2018. ESO News Feed Go to Source Powered by WPeMaticoRead More →

Not long after the Big Bang, the first generations of stars began altering the chemical make-up of primitive galaxies, slowly enriching the interstellar medium with basic elements such as oxygen, carbon, and nitrogen. Finding the earliest traces of these common elements would shed important light on the chemical evolution of galaxies, including our own. Powered by WPeMaticoRead More →

Interview With Dr. Alan Stern and Dr. David Grinspoon, Authors of Chasing Pluto I was fortunate enough to spend half an hour with Dr. Alan Stern and Dr. David Grinspoon to talk about their new book: Chasing New Horizons – Inside the Epic First Mission to Pluto. We had a great conversation, all about the political and engineering hurdles it took to get the mission literally off the ground, and out to Pluto. We also talked about what future missions could be in the works to return to Pluto, the amazing recent discoveries made at the Pluto system, and the next target for New Horizons.Read More →

If There is a Multiverse, Can There be Life There Too? The Multiverse Theory, which states that there may be multiple or even an infinite number of Universes, is a time-honored concept in cosmology and theoretical physics. While the term goes back to the late 19th century, the scientific basis of this theory arose from quantum physics and the study of cosmological forces like black holes, singularities, and problems arising out of the Big Bang Theory. One of the most burning questions when it comes to this theory is whether or not life could exist in multiple Universes. If indeed the laws of physics changeRead More →