Awritten statement using the words ''if'' and ''then''


Periodicity of elements

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solar system

we live in an amazing planetary system. from the yawning valles marineris on mars and the subsurface ocean hiding beneath the ice crust of jupiter’s moon europa, to the eerily earth-like terrain of saturn’s moon titan, the solar system brims with wonders. and let’s not forget the sun, with its mysteriously hot corona and its solar flares.

here you’ll find the latest news from our ongoing exploration of the solar system. whether it be stunning pictures from nasa’s curiosity rover or new revelations about planets’ history and formation, we bring you authoritative reports on the coolest and most important developments in planetary science and heliophysics.


‘oumuamua was a comet after allresearchers have found that 'oumuamua — the first confirmed object to enter the solar system from interstellar space — was a comet, releasing just enough gas to subtly change its course.

ryugu closeup

hayabusa 2: welcome to ryuguwe got a peek at a new worldlet in the inner solar system this week, as the japanese aerospace agency's (jaxa) hayabusa-2 gave us our first good looks at the tiny asteroid 162173 ryugu.

big dust storm blows up on mars (updated)will mars soon be hidden under a veil of dust? let's hope not. we explore the current storm and the planet's upcoming close opposition.

hill on medusae fossae formation

martian supervolcano created mysterious rock formationscientists have discovered that a supervolcano likely created a mysterious rock formation on mars some 3 billion years ago.

mars dust storm grows — curiosity’s skies darkening

by: sean walker | june 22, 2018 | comments 0

the dust storm on mars that broke out at the end of may is now affecting the skies across the entire planet.


apollo astronauts warmed the moon

a new study sheds light on an old mystery surrounding anomalous readings from the apollo landing sites.


no planet nine? small-body pile-up could explain odd orbits

by: javier barbuzano | june 11, 2018 | comments 2

new research shows that interactions between small objects beyond neptune’s orbit —and not a hypothetical planet nine — could be the reason some far-flung solar system objects “detach” from their original orbits.

mojave drill site on mars

methane and other organics on mars

the curiosity rover has detected organic molecules in ancient rocks on mars.

drill duluth

curiosity rover is drilling again

an innovative technique has allowed nasa's curiosity rover to resume drilling martian rocks. but the partially successful test shows that more work remains to be done.

europa's amazing surface

why are the galilean moons so massive?

2 scientists propose that saturn’s meddling helped create the four giant galilean moons orbiting jupiter.

dunes on pluto

dunes on pluto

planetary scientists think they’ve found wind-built ripples of methane ice on the king of the kuiper belt.


known close stellar encounters surge in number

a new analysis of our stellar neighborhood reveals 7 times as much nearby stellar traffic as previously known.

discovery images of asteroid 2015 bz509

did this wrong-way asteroid come from beyond the solar system?

an intriguing asteroid was spotted traveling backwards around jupiter back in 2015. now a team of researchers think it could have formed around another star.

helicopter to hitch a ride with mars 2020 rover

a small helicopter will be the first mission to fly through the skies of mars.

jupiter, europa, and galileo

nasa’s galileo measures plumes on jupiter’s moon europa

a new analysis of decades-old data from nasa’s galileo spacecraft, which reached the jupiter system in 1995, shows the best evidence yet for plumes from the icy moon europa.

mars cube one

mars-bound cubesats launch with nasa’s insight

the mars cube one mission — the first to send cubesats into interplanetary space — will test revolutionary relay technologies as it accompanies mars insight to the red planet.

insight stowed for launch

nasa’s insight lander heads to mars

rising through thick fog from vandenberg air force base in california. nasa's latest mission intends to probe deeply into mars and decipher how it formed.

"old soaker" rock slab on mars

mud cracks on mars reveal lake’s history

curiosity spotted polygonal shapes on the surface of rocks on mars — now, analysis of these mud cracks is revealing the history of the long-ago lake that once filled gale crater.


pluto’s moon charon receives formal names

the international astronomical union has approved names for features on pluto's largest moon, charon.

oumuamua painting by hartmann

is ‘oumuamua an interstellar pancake?

a new analysis of more than 800 telescopic observations suggests that our first known interstellar visitor could have the shape of a cigar or a fat disk.

The answer is Hypothesis.

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