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Solar System

An artist's impression of a laser sail powered by directed energy. Credit: Q. Zhang/deepspace.ucsb.edu

Lasers will be able to send missions to Mars in just 45 days

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A group of researchers proposes to build a spacecraft that will rely on an innovative propulsion system - in which lasers are used to heat hydrogen fuel - that can shorten the flight time to Mars to only 45 days instead of 100
This illustration shows a simulation of how NASA's Mars Rover, carrying test tubes containing rock and soil samples, might be launched from the surface of Mars during one phase of the Mars sample return mission. Credit: NASA/JPL-Caltech

NASA chose Lockheed Martin Space to build the rocket that will return the first samples from Mars

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The contract brings NASA one step closer to the first robotic round-trip flight to bring samples safely to Earth through the Mars Sample Return Program
This image allows us to see the dense dusty regions of space where star formation occurs. G. Li Causi, IAPS/INAF, Italy, CC BY

On the occasion of the launch of the Webb Space Telescope: the five most exciting telescope images of the universe

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Astronomers rarely use their telescopes just to take pictures. The images in astrophysics are usually created by a process of scientific inference and imagination, the visual expression of which is sometimes an artist's impression of what emerges from the data but there are also some gems that are photographed directly
McKay made no secret that he wanted to make a film about the insistence of many of us not to look up and see the climate crisis. Credit: Netflix

Hollywood against the climate crisis - when the world doesn't even listen to Leonardo DiCaprio and Jennifer Lawrence

"Don't Look Up", the new film by Leonardo DiCaprio and Jennifer Lawrence, presents a satirical and poignant look at humanity and the role of the media in the fight against today's major environmental problem
This JunoCam image shows two of Jupiter's largest circumstellar storms, taken on Juno's 38th transit of Jupiter's periapsis on November 29, 2021. Credit: NASA/JPL-Caltech/SwRI/MSSS Image processing: Kevin M. Gill CC BY

The Juno spacecraft closely observed storms on Jupiter and "heard" Jupiter's moon Ganymede - listen to the dramatic flyby of the icy moon

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A dramatic ride with an audio track collected during the Jupiter mission's flyby of Ganymede — one of the highlights mission scientists shared in an overview at the fall meeting of the American Geophysical Union
NASA's Curiosity rover used its navigation cameras to capture panoramic images of this landscape. Add blue, orange, and green color to the combination of the panoramic images for an artistic interpretation of the landscape. Credit: NASA/JPL-Caltech

The Curiosity rover sends a beautiful postcard from Mars

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An artistic interpretation of Curiosity's field of view on a mountain on Mars was created by team members who were amazed by the sweeping view
Illustration of NASA's DART spacecraft and the Italian Space Agency's LICIACube before impact with the Didymos split asteroid system. Image credit: NASA/Johns Hopkins APL/Steve Griven

When cinema and reality come together in the mission of dropping an asteroid: the DART spacecraft is launched

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The DART spacecraft that will try to change the orbit of a double asteroid will be launched on 24/11. The producers of Netflix's space disaster film "Don't Look Up," about the discovery of an Earth-threatening asteroid, have scheduled its arrival on Netflix for its scheduled launch day
Jupiter's Great Red Spot as captured by Juno's camera lens. Its size is the size of the earth

How deep is the most famous spot in the solar system

Scientists from the Weizmann Institute of Science and their partners on NASA's Juno space mission have revealed a series of new findings about the planet Jupiter and found a surprising similarity to Earth
This figure depicts the Lucy spacecraft in the vicinity of the Trojan asteroid (617) Patroclus and its companion Mannotius (double asteroid). Lucy will be the first mission to study Jupiter's Trojan asteroids - ancient remnants of the outer solar system trapped in the giant planet's orbit. NASA's Goddard Space Flight Center/Conceptual Image Lab/Adriana Gutierrez

NASA launched the Lucy spacecraft to fly by eight "Trojan" asteroids

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Lucy will fly up to 400 km from the surface of its targets - asteroids that are in sync with the planet Jupiter, and will use its instruments and large antennas to study their geology, including composition, mass, density and volume.
The six Harmonauts as soon as they left the Hav after the four days of the experiment, February 2018. Photo: Avi Blizovsky

A Mars simulation returns to the Ramon Crater

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The six Harmonauts as soon as they left the Hav after the four days of the experiment, February 2018. Photo: Avi Blizovsky
Artist description based on research findings. The explosion was as powerful as 1,000 Hiroshimas. Illustration: Alan West and Jennifer Rice, CC BY-ND

A giant space rock destroyed a city near the Dead Sea about 3,600 years ago; Inspiration for the story of the destruction of Sodom and the destruction of the walls of Jericho

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One of the researchers responsible for the discovery tells how an asteroid similar to the one that caused the incident in Tungaska in Siberia in 1908, hit a city in Jordan northeast of the Dead Sea. The city was abandoned afterwards, and the echoes of the explosion hit other cities in the vicinity, including Jericho
Illustration of NASA's Viper robot on the surface of the Moon. Credit: NASA Ames/Daniel Rutter

NASA's VIPER robot will land near the south pole of the moon

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The south pole of the moon is one of the coldest regions in our solar system. No previous mission to the surface of the moon has explored it - until now scientists have explored the area using remote sensing instruments, in 2023 NASA will launch a robotic vehicle that will explore the area on the ground
Thousands of asteroids pass by the Earth. Illustration image. Illustration: depositphotos.com

The asteroid near Haaretz Alef has been observed by planetary radar since 1968

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Just seven days later, a planetary radar observed the 1,001st bone of its kind, which was much larger
A coronal mass ejection erupting from our Sun on August 31, 2012. Photo: NASA/GSFC/SDO

Has the "heat convection" puzzle of the sun been solved?

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Scientists are making another small step towards cracking the mysteries of space weather
This image shows an artist's impression of the Martian moon Ganymede. Astronomers used archive data from the Hubble Space Telescope to discover the first evidence of water vapor in the atmosphere of Jupiter's moon Ganymede, the result of thermal escape of water vapor from ice on the moon's surface. Credit: ESA/Hubble, J. daSilva

Hubble finds first evidence of water vapor in the atmosphere of Jupiter's moon Ganymede

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The oxygen found in the frozen world is linked to the sublimation of ground ice
Six cyclones at the south pole of Jupiter, as captured by the infrared lens of the Juno probe in February 2017. Beautifully arranged and shaped like a rose cake. Source: NASA

The mystery of Jupiter's cyclones

They are powerful, they are the size of Australia and no one imagined them until a few years ago - what is the secret of the storms at the poles of the largest planet in the solar system?
Artist illustration of asteroid 16 Psyche Credit: NASA/JPL-Caltech/ASU

The precious metal-rich asteroid 16 Psyche may not be a solid lump of metal after all but a pile of rocks

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The researchers based their work on previous observational data that showed the asteroid is primarily a mixture of three components: metal, low-iron pyroxene and carbonaceous chondrite. A laboratory experiment led the researchers to the conclusion that the density of the asteroid is low. A NASA spacecraft is expected to reach it by 2026
First colony on Mars. Image: : depositphotos.com

Engineers have developed an innovative water treatment method that could help Mars explorers

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A catalyst that breaks down a chlorine compound (perchlorate) in water could help clean the soil on the planet Mars during manned habitation on Mars. It is a substance that accumulates in plants and makes them toxic if it is not removed from the water with which they will water the plants that will be served by humans who will fly there
From the artist's illustration above, you can get an impression of how nearby objects will look to the NEO Surveyor. Their faint heat signatures will appear as a band of dots that appear in red in this image, for our convenience. That way they will look different from the stars in the background, which are painted blue in the picture. Hunting for near-infrared objects will also allow scientists to determine not only the location and orbit of the objects but also their size. And it is the size that determines the extent of their destruction if they hit the Earth. Image: NASA

NASA approves NEO Surveyor, a space telescope that will scan the sky for dangerous asteroids

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The spacecraft will conduct its survey in infrared. Telescopes on Earth have found most of the nearby objects cataloged so far, but the remaining ones are very difficult to find in visible light
NASA's Mars lander captured this image as it passed over the surface of Mars on April 19, 2021, in the first stage of a powered and controlled flight to another planet. It used its navigation camera, which autonomously tracks the ground during the flight. Credits: Nas "A / JPL-Caltech

The Mars helicopter successfully took off on its first flight: less than 4 minutes to a height of 10 m

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NASA's Ingenuity Mars lander captured this takeoff as it hovered over the Martian surface on April 19, 2021
Earth's axis of rotation. Illustration: shutterstock

Things that Yorams know: why does the earth rotate like shawarma?

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What would happen if the earth did not rotate on a north-south axis (like a shawarma skewer) but on some axis on the equator?
The asteroid Apophis passes by the Earth. Illustration: shutterstock

An asteroid will pass on March 21; In 2020, a record of the discovery of near-Earth objects was recorded

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However, no danger is expected from this asteroid - on March 6, astronomers and astronomy enthusiasts watched the transit of the asteroid Apophis, which will return much closer to us in 2029
Solar flare - the emitted neutrino crosses the Earth. . Image: depositphotos.com

Does the geological clock based on the half-life of radioactive materials need to be recalibrated?

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Are events in the distant past, such as the extinction of the dinosaurs, about ten percent closer in time to us? And how does it relate to solar flares? This is according to ongoing research by a group headed by Prof. Yitzhak Orion from Ben Gurion University. In an interview with the Hidan site, Prof. Orion also explains the role of the neutrino particle in the phenomenon
The capsule containing NASA's persistence vehicle and rover Ingenuity guides itself toward the Martian surface as it descends through the atmosphere. Hundreds of critical events must be executed perfectly and precisely as the capsule lands safely on Mars on February 18, 2021. Credit: NASA / JPL-Caltech

Update: The Mars Preservation vehicle with a helicopter glider in it landed safely - live broadcast

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The autonomous landing of Persistence (Preservation) is supposed to be the most precise landing of a spacecraft on Mars to date
Comparison of NASA's all-terrain vehicles that have flown to Mars so far (including Preserver's which is on its way there). Photo: NASA/Caltech

Seven things you need to know about the Mars 2020 mission Prezbyrans

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The Perseverance vehicle, built at NASA's Jet Propulsion Laboratory in Southern California, is loaded with scientific instruments, advanced landing computing capabilities and other new systems
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