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TAG Osiris-REX

Astronomy in Space with David Dickinson

Osiris-REX "TAGs" Bennu, Returns Stunning Views

See images and video from NASA’s Osiris-REX spacecraft as it samples the Nightingale site.

Magma ocean and crust

Solar System

Moon’s Magnetism Might Have Protected Earth

The Moon's magnetic field, now long gone, might once have shielded Earth from the young Sun's radiation.

ATLAS with a tail

Explore the Night with Bob King

Comets Crawl through the Skies at Dawn and Dusk

Comets have been scarce since NEOWISE departed the scene. Not anymore. Suddenly, there are four fresh faces visible from dusk til dawn.

OSIRIS-Rex

Astronomy in Space with David Dickinson

Osiris-REX Successfully Collected Sample from Asteroid Bennu

NASA's Osiris-REX mission has successfully touched down on the asteroid Bennu to collect a sample of its surface for return to Earth.

Global false-color map of Bennu

Solar System

Osiris-REX Finds Some of Solar System's Oldest Rocks on Bennu

NASA's Osiris-REX mission has found evidence of ancient water flows on the surface of asteroid Bennu.

Pioneer Venus

Solar System

Did Pioneer Venus Find Phosphine First?

NASA's Pioneer Venus mission, which launched in 1978, found the first tantalizing clues of phosphine, a potential biosignature gas — but it took 40 years to realize it!

Venus

Pro-Am Collaboration

Calling on Amateur Astronomers: Observe Venus!

The Mercury-bound BepiColombo spacecraft will fly by Venus on October 15th, and the mission is asking amateurs for their help.

Mars south pole ice cap

Solar System

Evidence Grows for Super-Salty Underground Lakes on Mars

New analysis of data from the European Space Agency's Mars Express orbiter strengthens the case for salty lakes underneath Mars's south polar cap.

Comet 67P

Solar System

Comets Have (Ultraviolet) Aurora, Too

Observations from the European Space Agency’s Rosetta spacecraft show that Comet 67P/Churyumov-Gerasimenko has its own aurora.

EnVision Orbiter

Solar System

Race to Venus: How We’ll Verify Phosphine

Confirming phosphine's presence on Venus is difficult from Earth . . . and that makes a good case for a mission to our sister planet.

Sunspots at solar minimum vs. maximum

Solar System

Sun’s Activity Cycle Is Stabilizing

Solar Cycle 25 is here, and forecasts suggest the next decade of the Sun’s activity will mimic the last one — halting a 40-year trend.

Ariel transits Uranus

Solar System

Uranian Moons Are Like Dwarf Planets

The moons of Uranus exhibit heat signatures similar to dwarf planets in the Kuiper Belt — where the moons were likely born.

Gibbous Venus from Akatsuki

Solar System

Potential Biosignature Found in Venus’s Clouds

Astronomers might have found a potential indication of life in the clouds of Venus.

2020 QU6

Solar System

Amateur Astronomer Finds Kilometer-size Asteroid

A grant from the Planetary Society enabled an amateur astronomer's discovery of kilometer-size asteroid 2020 QU6.

NTB via Juno

Planets

Stormy Times on Jupiter, Comet Howell Steps Up, and More

Colder weather might be coming, but don't pack away that telescope! You'll miss a powerful storm that's remaking Jupiter's North Temperate Belt, a returning comet, Mira on the rise, and a bright supernova in the Great Bear.

Jupiter, Ganymede, Europa and double shadows, March 25, 2019

Solar System

Study Suggests Jupiter Could Have 600 Moons

New detections of candidate moons suggest that the king of planets could have hundreds of smaller satellites.

Twinkling quasar

Solar System

Twinkling Quasar Hints at Mysterious Nearby Plasma Cloud

Radio observations have turned up evidence of a cloud of hot plasma near — or even in — the solar system. But its distance estimate is still up for debate.

Protoplanetary disk

Solar System

The Origin of Earth’s Water

Scientists have discovered a new candidate source for Earth's water: building blocks of the primordial solar system known as enstatite chondrites.

Charon

Solar System

How Did Pluto's Moons Form?

A massive collision with Pluto’s moon Charon could have formed the dwarf planet’s collection of smaller moons.

Comet NEOWISE

Solar System

Hubble Captures Comet NEOWISE

The Hubble Space Telescope imaged the famous comet on August 8th.

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