Featured News

   View All
http://www.nasa.gov/feature/goddard/2020/bennu-vesta-meteorites: NASA’s OSIRIS-REx to Asteroid Bennu: “You’ve got a little Vesta on you…”
NASA's Goddard Space Flight Center

Direct link NASA’s OSIRIS-REx to Asteroid Bennu: “You’ve got a little Vesta on you…”

21 Sep 2020, 15:00 UTC In an interplanetary faux pas, it appears some pieces of asteroid Vesta ended up on asteroid Bennu, according to observations from NASA’s OSIRIS-REx spacecraft. The new result sheds light on the intricate orbital dance of asteroids and on the violent origin of Bennu, which is a “rubble pile” asteroid that coalesced from the fragments of a massive collision.
https://news.mit.edu/2020/earth-sized-pi-planet-0921: Astronomers discover an Earth-sized “pi planet” with a 3.14-day orbit
MIT

Direct link Astronomers discover an Earth-sized “pi planet” with a 3.14-day orbit

21 Sep 2020, 04:00 UTC In a delightful alignment of astronomy and mathematics, scientists at MIT and elsewhere have discovered a “pi Earth” — an Earth-sized planet that zips around its star every 3.14 days, in an orbit reminiscent of the universal mathematics constant.
http://www.nasa.gov/image-feature/goddard/2020/hubble-locks-eyes-with-a-snake: Hubble Locks Eyes With a Snake
NASA's Goddard Space Flight Center

Direct link Hubble Locks Eyes With a Snake

18 Sep 2020, 12:24 UTC The twisting patterns created by the multiple spiral arms of NGC 2835 create the illusion of an eye. This is a fitting description, as this magnificent galaxy resides near the head of the southern constellation of Hydra, the water snake. This stunning barred spiral galaxy, with a width of just over half that of the Milky Way, is brilliantly featured in this image taken by the NASA/ESA Hubble Space Telescope. Although it cannot be seen in this image, a supermassive black hole with a mass millions of times that of our Sun is known to nestle in the very center of NGC 2835.
https://public.nrao.edu/?post_type=release&p=17966: VLBA Makes First Direct Distance Measurement to Magnetar
National Radio Astronomy Observatory (NRAO)

Direct link VLBA Makes First Direct Distance Measurement to Magnetar

17 Sep 2020, 22:22 UTC Astronomers using the National Science Foundation’s Very Long Baseline Array (VLBA) have made the first direct geometric measurement of the distance to a magnetar within our Milky Way Galaxy — a measurement that could help determine if magnetars are the sources of the long-mysterious Fast Radio Bursts (FRBs).Magnetars are a variety of neutron stars — the superdense remains of massive stars that exploded as supernovae — with extremely strong magnetic fields. A typical magnetar magnetic field is a trillion times stronger than the Earth’s magnetic field, making magnetars the most magnetic objects in the Universe. They can emit strong bursts of X-rays and gamma rays, and recently have become a leading candidate for the sources of FRBs.A magnetar called XTE J1810-197, discovered in 2003, was the first of only six such objects found to emit radio pulses. It did so from 2003 to 2008, then ceased for a decade. In December of 2018, it resumed emitting bright radio pulses.A team of astronomers used the VLBA to regularly observe XTE J1810-197 from January to November of 2019, then again during March and April of 2020. By viewing the magnetar from opposite sides of the Earth’s orbit around the Sun, they were ...
news/2020-23: Astronomers Solve Mystery of How Planetary Nebulae Are Shaped
Harvard-Smithsonian Center for Astrophysics

Direct link Astronomers Solve Mystery of How Planetary Nebulae Are Shaped

17 Sep 2020, 18:10 UTC Following extensive observations of stellar winds around cool evolved stars scientists have figured out how planetary nebulae get their mesmerizing shapes. The findings, published in Science, contradict common consensus, and show that not only are stellar winds aspherical, but they also share similarities with planetary nebulae.
https://www.spacetelescope.org/news/heic2017/: Photo Release: Hubble Captures Crisp New Image of Jupiter and Europa
Hubble Space Telescope News

Direct link Photo Release: Hubble Captures Crisp New Image of Jupiter and Europa

17 Sep 2020, 17:00 UTC
de3761eba10c42bee13d69375575b3b8: Mesh reflector for shaped radio beams
ESA Top News

Direct link Mesh reflector for shaped radio beams

17 Sep 2020, 06:35 UTC This prototype 2.6-m diameter metal-mesh antenna reflector represents a big step forward for the European space sector: versions can be manufactured to reproduce any surface pattern that antenna designers wish, something that was previously possible only with traditional solid antennas.
http://www.icg.port.ac.uk/?p=19045: Ripples from deep in the Cosmos reveal most massive black hole detected yet
Institute of Cosmology and Gravitation

Direct link Ripples from deep in the Cosmos reveal most massive black hole detected yet

16 Sep 2020, 13:09 UTC The most massive gravitational-wave source yet has been detected – a binary black hole merger, which produced a blast equal to the energy of eight Suns, sending shockwaves through the universe. Gravitational waves are produced when an extreme cosmic event occurs somewhere in the universe and, like dropping a rock in a pond, these events ripple across the cosmos, bending and stretching the fabric of space-time itself.
http://www.nasa.gov/press-release/nasa-missions-spy-first-possible-survivor-planet-hugging-white-dwarf-star: NASA Missions Spy First Possible ‘Survivor’ Planet Hugging White Dwarf Star
NASA's Goddard Space Flight Center

Direct link NASA Missions Spy First Possible ‘Survivor’ Planet Hugging White Dwarf Star

15 Sep 2020, 20:22 UTC
http://www.nasa.gov/feature/goddard/2020/how-scientists-around-world-track-solar-cycle-sunspots-sun: How Scientists Around the World Track the Solar Cycle
NASA's Goddard Space Flight Center

Direct link How Scientists Around the World Track the Solar Cycle

15 Sep 2020, 17:00 UTC Every morning, astronomer Steve Padilla takes a short walk from his home to the base of a tower that soars 150 feet above the ground. Tucked in the San Gabriel Mountains, about an hour’s drive north from Los Angeles, the Mount Wilson Observatory has long been a home for space science — it’s Padilla’s home too, one of the perks to his work as Mount Wilson’s Sun observer. Mount Wilson has several solar system sentinels; the telescope perched at the top of this tower keeps constant watch on the Sun. Observers study the Sun closely, so we can better understand the life and activity of our star.

Displaying 1-10 of 12615 entries.

Previous | 1 2 3 4 5 6 ... | Next
 

Most Recent News

   Expand Entries View All

Displaying 1-50 of 65966 entries.

Previous | 1 2 3 4 5 6 ... | Next

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day

astronomy_pod