ESA’s CHEOPS Just Launched. We’re About to Learn a LOT More About Exoplanets

The ESA's CHEOPS launching aboard a Soyuz-FG rocket from Kourou, French Guiana. Image Credit: ESA - S. Corvaja

The CHEOPS mission is underway. On December 18th, the exoplanet-studying spacecraft launched from Europe’s Spaceport in Kourou, French Guiana aboard a Soyuz-Fregat rocket. Initial signals from CHEOPS show that the launch was a success.

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Will Blanpain Perform? Comet Prospects for 2020

Comet T2 PanSTARRS
Getting brighter... Comet T2 PanSTARRS from December 6th. Image credit and copyright: Efrain Morales Rivera.

Looking forward to the next bright comet in 2020 or beyond? You’re not alone. Though we’ve had a steady string of decent binocular comets over the past few years, we haven’t had a good naked eye comet since W3 Lovejoy beat solar death during its blistering perihelion passage in 2011. But this survivor turned out to be bashful, and headed for southern hemisphere skies… Comet P1 McNaught followed suit in 2007, hiding from northern hemisphere observers at its best. And we all remember what happened to Comet S1 ISON—touted as the next great ‘Comet of the Century’ on U.S. Thanksgiving Day 2013. Here it is almost 2020, and you have to go allll the way back nearly a quarter of a century to Hale-Bopp and Hyakutake to remember just how brilliant a good naked eye comet can be.

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Astronomers Map the Surface of a Pulsar

Simulation of a possible quadrupole magnetic field configuration for a pulsar with hot spots in only the southern hemisphere. Credits: NASA's Goddard Space Flight Center

When stars exhaust their supply of fuel, they collapse under their own weight and explode, blowing off their outer layers in an event known as a “supernova”. In some cases, these events leave behind neutron stars, the smallest and densest of stellar objects (with the exception of certain theoretical stars) that sometimes spin rapidly. Pulsars, a class of neutron star, can spin up to several hundred times per second.

One such object, designated J0030+0451 (J0030), is located about 1,100 light-years from Earth in the Pisces constellation. Recently, scientists using NASA’s Neutron star Interior Composition Explorer (NICER) were able to measure the pulsar’s size and mass. In the process, they also managed to locate the various “hot spots” on its surface, effectively creating the first map of a neutron star.

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Planetary Mass Objects Discovered in Other Galaxies

In this artist's conception, a rogue planet drifts through space. Credit: Christine Pulliam (CfA)
In this artist's conception, a rogue planet drifts through space. Credit: Christine Pulliam (CfA)

A team of researchers at the University of Oklahoma have discovered “planetary mass bodies” outside of the Milky Way. They were discovered in one gravitationally-lensed galaxy, and in one gravitationally-lensed galaxy cluster using a technique called quasar micro-lensing. According to the researchers, the planetary mass objects are either planets or primordial black holes.

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Mars Express Takes Photos of Phobos as it Flies Past

Phobos, a moon of Mars.
Japan is sending a spacecraft to Phobos to study it and collect samples for return to Earth. A German rover will be part of the fun. Image Credit: NASA/JPL-Caltech/University of Arizona

The ESA’s Mars Express Orbiter is no stranger to the Martian moon Phobos. The spacecraft was launched in June 2003 and has been in orbit around Mars for 16 years. During its long time at Mars, it’s captured detailed images of Phobos, and helped unlocked some of that Moon’s secrets.

In a new sequence of 41 images captured during a recent fly-by, the Mars Express’ High Resolution Stereo Camera imaged Phobos from different angles, capturing images of the moon’s surface features, including the Stickney crater.

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NASA Maps Out the Water On Mars. Some Will Be So Easy to Get, You Could Dig it Out With a Shovel

This rainbow-colored map shows underground water ice on Mars. Cool colors represent less than one foot (30 centimeters) below the surface; warm colors are over two feet (60 centimeters) deep. Sprawling black zones on the map represent areas where a landing spacecraft would sink into fine dust. The outlined box represents the ideal region to send astronauts for them to be able to dig up water ice. Image Credit: NASA/JPL-Caltech/ASU

NASA has created a map showing how water is distributed on Mars. The water is frozen under the surface of the planet, and some of it is only 30 cm (12 inches) deep. At that depth, astronauts won’t need a machine to access it: just a shovel.

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Planets Started Out From Dust Clumping Together. Here’s How

Artist depiction of a protoplanetary disk permeated by magnetic fields. Objects in the foregrounds are millimeter-sized rock pellets known as chondrules. Credit: Hernán Cañellas

According to the most widely accepted theory of planet formation (the Nebular Hypothesis), the Solar System began roughly 4.6 billion years ago from a massive cloud of dust and gas (aka. a nebula). After the cloud experienced gravitational collapse at the center, forming the Sun, the remaining gas and dust fell into a disk that orbited it. The planets gradually accreted from this disk over time, creating the system we know today.

However, until now, scientists have wondered how dust could come together in microgravity to form everything from stars and planets to asteroids. However, a new study by a team of German researchers (and co-authored by Rutgers University) found that matter in microgravity spontaneously develops strong electrical charges and stick together. These findings could resolve the long mystery of how planets formed.

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The Spaceport America Cup Joins Crowdsourcing Platform HeroX to Propel Student Innovation!

Spaceport America in New Mexico. Credit: Foster and Partners.

Beginning in 2017, the Experimental Sounding Rocket Association (ESRA) and Spaceport America came together to launch a competition known as the Spaceport America Cup. This annual event sees academics and industry experts from around the world gather at the world’s first purpose-built spaceport to collaborate, compete, and inspire young people to become the next generation of aerospace engineers.

At the heart of the competition is the Intercollegiate Rocket Engineering Competition (IREC), where commercial and student teams build and launch-test rockets of their own design. This year’s competition is expected to be very exciting and will see 1,500 international students from over 70 institutions converge on Southern New Mexico this summer to ply their talents and compete for the prestigious Spaceport America Cup!

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Dark Matter Could Be A Source of Gamma Rays Coming from the Center of the Milky Way

A map of gamma ray emissions throughout the Milky Way galaxy, based on observations from the Fermi Gamma-ray Space Telescope. The inset depicts the Galactic Center Excess – an unexpected, spherical region of gamma ray emissions at the center of our galaxy, of unknown origin. Credit: NASA/T. Linden, U.Chicago

There’s a lot of mysterious goings-on at the center of the Milky Way. The supermassive black hole that resides there is chief among them. But there’s another intriguing puzzle there: an unexpected spherical region of intense gamma ray emissions.

A new study suggests that dark matter could be behind those emissions.

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How Spiral Galaxies Get Their Shape

Magnetic fields in NGC 1086, or M77, are shown as streamlines over a visible light and X-ray composite image of the galaxy from the Hubble Space Telescope, the Nuclear Spectroscopic Array, and the Sloan Digital Sky Survey. The magnetic fields align along the entire length of the massive spiral arms — 24,000 light years across (0.8 kiloparsecs) — implying that the gravitational forces that created the galaxy’s shape are also compressing the its magnetic field. This supports the leading theory of how the spiral arms are forced into their iconic shape known as “density wave theory.” SOFIA studied the galaxy using far-infrared light (89 microns) to reveal facets of its magnetic fields that previous observations using visible and radio telescopes could not detect. Credits: NASA/SOFIA; NASA/JPL-Caltech/Roma Tre Univ.

Spiral galaxies are an iconic form. They’re used in product logos and all sorts of other places. We even live in one. And though it may seem kind of obvious how they get their shape, by rotating, that’s not the case.

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