NASA's Juno Spacecraft Enters Orbit Around Jupiter, the 'King of Planets'

Artist's conception of Juno approaching Jupiter. Image Credit: NASA

Artist’s conception of Juno approaching Jupiter. Image Credit: NASA

Jupiter has often been referred to as the King of Planets, and for good reason, as it is a massive gas giant, much larger than Earth and the largest planet in our Solar System. It is more than 2.5 times as massive as all the other […]

Uncertain Journey: 30 Years Since Voyager 2's Encounter With Uranus (Part 1)

Visible only as a crescent, Uranus recedes from Voyager 2 in the days after Closest Approach. Photo Credit: NASA

Visible only as a crescent, Uranus recedes from Voyager 2 in the days after Closest Approach. Photo Credit: NASA

Thirty years ago, today and tomorrow, NASA’s Voyager 2 spacecraft gave humanity its first close-up glimpse of Uranus. Known for more than two centuries, and frequently the “butt” of many off-color jokes, this giant gaseous […]

Scientists Solve Mystery Surrounding Voyager 1's Passage to Interstellar Space

Ever since NASA's Voyager 1 spacecraft had exited the heliosphere and made the passage to interstellar space, scientists had been perplexed by the spacecraft inconsistent measurements of the galactic magnetic field that lies outside of the Sun's magnetosphere. A new study shows that these Inconsistencies are caused by the deflection of the galactic magnetic field lines from the solar one, at the boundary of the heliopause. Image Credit: NASA/JPL-Caltech

Ever since NASA’s Voyager 1 spacecraft exited the heliosphere and made the passage to interstellar space, scientists were perplexed by the spacecraft inconsistent measurements of the galactic magnetic field that lies outside of the Sun’s magnetosphere. A new study shows that these inconsistencies are caused by the deflection of the galactic magnetic field lines from […]

Back to the Ice Giants: Proposed New Mission Would Re-Visit Uranus or Neptune (or Both!)

Uranus (left) and Neptune (right). These two ice giants and their many moons are awaiting further exploration. Image Credit: NASA

Uranus (left) and Neptune (right). These two ice giants and their many moons are awaiting further exploration. Image Credit: NASA

The outer Solar System has been a busy place lately, with the ongoing Cassini mission at Saturn and New Horizons’ recent spectacular flyby of Pluto. Literally in-between those two worlds, however, it has been […]

Three Weeks to Pluto: A World of Tiny Moons and Missed Mission Opportunities (Part 2)

An artist’s concept of NASA’s New Horizons spacecraft during its closest approach to Pluto and Charon on 14 July. This spacecraft is the only successful outcome in a long line of unrealized missions to Pluto. Image Credit: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute (JHUAPL/SwRI)

When a Kansan farmboy-turned-astronomer named Clyde Tombaugh discovered […]

New Horizons Sends Back New Photos of Pluto on Clyde Tombaugh's Birthday

Two new images of Pluto and its largest moon Charon, taken on Jan. 25 and Jan. 27, 2015 by the New Horizons spacecraft. Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute

As the New Horizons spacecraft continues speeding toward its rendezvous with Pluto this summer, it has just sent back new photos […]

Voyager 1 Detects 'Tsunami' Wave From Sun Still Going Strong Beyond the Heliopause

An artist’s concept of Voyager 1 against a backdrop of stars. Having crossed into interstellar space, the spacecraft has detected that a shockwave from a Coronal Mass Ejection which was blasted from the Sun more than a year ago, is still travelling outward into the interstellar medium. Image Credit: NASA/JPL-Caltech

Having long ago completed […]

A Troubled Start to a Triumphant Mission: 37 Years Since the Launch of the Voyagers

Voyager 2 begins its journey of exploration, 37 years ago today (20 August), with a rousing liftoff atop a Titan IIIE-Centaur booster from Launch Complex (LC)-41 at Cape Canaveral. Photo Credit: NASA

A quarter-century ago, this week, NASA’s Voyager 2 spacecraft became the first machine fashioned by human hands to travel close to the […]

A Gigantic Radio Ear: 25 Years Since Voyager 2's Mission to Neptune (Part 1)

In spite of its immense distance from the Sun, Neptune proved a surprise in terms of the dynamism of its atmosphere. Photo Credit: NASA

Twenty-five years ago, this week, humanity braced itself for its last, first-time, close-up glimpse of a new planet in the 20th century. NASA’s Voyager 2 spacecraft, launched in August 1977, […]

Riding on Interstellar Winds: New Solar Outburst Confirms NASA's Voyager 1 Spacecraft Has Exited Heliosphere

Recent measurements of plasma waves at the vicinity of Voyager 1 confirm previous results which showed that the spacecraft has exited the heliosphere and entered interstellar space. Image Credit: NASA/JPL-Caltech

“Sailors on a becalmed sea, we sense the stirring of a breeze.”

— Carl Sagan, “Pale Blue Dot” (1994)

 

In the last couple […]