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Archive for the ‘space’ category: Page 348

Oct 21, 2021

Why Scientists Think This Object Is An Alien Spacship Not an Asteroid

Posted by in category: space

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Oct 21, 2021

In Photos: Jaw-Dropping New Images Of Jupiter And Its ‘Wet Moon’ Europa Taken This Week

Posted by in category: space

The first images are now coming through to NASA from this week’s flyby of Jupiter by its Juno spacecraft.

This latest close flyby is the 37th of the mission, but this basketball court-sized spacecraft’s images of the giant planet never cease to amaze.

This week’s images even include a rare photo of Jupiter’s moon Europa.

Oct 20, 2021

How DART mission may help save us from an asteroid threatening Earth

Posted by in category: space

Right now the theme in space is not only billionaires crossing the Karman line… we are now looking to go further than we’ve ever ventured to study asteroids. Also, we’re trying a new tactic to see if we can successfully divert an asteroid from wiping us all out.
Lucy launched Saturday from Florida. Despite a problem with the solar array panels not latching completely, NASA is confident the mission won’t be severely impacted.
I also talked to Harvard astronomer Jonathan McDowell about the Double Asteroid Redirection Test or DART that is scheduled for November.

HI! I am a news anchor and I have a passion for making videos and I love sharing parts of my experience with you, the viewer!

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Oct 20, 2021

When Will Space Tourism be Affordable?

Posted by in categories: food, space

Brilliant breakdown of a fascinating topic, this.


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Oct 20, 2021

Earth’s demise could rid galaxy of meaning, warns Brian Cox ahead of Cop26

Posted by in categories: biological, space

“If you accept that meaning is something that emerges from sufficiently complex biological machines, then the only place those machines might exist is here; then it’s correct to say that if this planet weren’t here, we’d live in a meaningless galaxy. That’s different to life. There’s a difference between life and intelligent life.”


Unique events that led to civilisation mean its demise could ‘eliminate meaning in galaxy for ever’.

Oct 20, 2021

Terraforming Mars in 3 Just Simple Steps!

Posted by in categories: engineering, environmental, space

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In this not-quite-serious video I explain what it would take to terraform Mars and make it habitable for humans.

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Oct 19, 2021

Listen: Perseverance captures the eerie sounds of Mars and Ingenuity

Posted by in category: space

NASA released five hours of new recordings.


Five hours of audio taken on the Red Plant by the rover Perseverance reveals the thick sounds of wind, the rover’s own tires, and Ingenuity in the distance.

Oct 19, 2021

Validation of Covert Cognizance Active Defenses

Posted by in categories: mathematics, nuclear energy, robotics/AI, security, space

(2021). Nuclear Science and Engineering: Vol. 195 No. 9 pp. 977–989.


Earlier work has demonstrated the theoretical development of covert OT defenses and their application to representative control problems in a nuclear reactor. Given their ability to store information in the system nonobservable space using one-time-pad randomization techniques, the new C2 modeling paradigm6 has emerged allowing the system to build memory or self-awareness about its past and current state. The idea is to store information using randomized mathematical operators about one system subcomponent, e.g., the reactor core inlet and exit temperature, into the nonobservable space of another subcomponent, e.g., the water level in a steam generator, creating an incorruptible record of the system state. If the attackers attempt to falsify the sensor data in an attempt to send the system along an undesirable trajectory, they will have to learn all the inserted signatures across the various system subcomponents and the C2 embedding process.

We posit that this is extremely unlikely given the huge size of the nonobservable space for most complex systems, and the use of randomized techniques for signature insertion, rendering a level of security that matches the Vernam-Cipher gold standard. The Vernam Cipher, commonly known as a one-time pad, is a cipher that encrypts a message using a random key (pad) and can only be decrypted using this key. Its strength is derived from Shannon’s notion of perfect secrecy 8 and requires the key to be truly random and nonreusable (one time). To demonstrate this, this paper will validate the implementation of C2 using sophisticated AI tools such as long short-term memory (LSTM) neural networks 9 and the generative adversarial learning [generative adversarial networks (GANs)] framework, 10 both using a supervised learning setting, i.e., by assuming that the AI training phase can distinguish between original data and the data containing the embedded signatures. While this is an unlikely scenario, it is assumed to demonstrate the resilience of the C2 signatures to discovery by AI techniques.

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Oct 18, 2021

0:00 Introduction

Posted by in categories: education, robotics/AI, space

1:42 Are we on the wrong train to AGI?
4:20 Marvin Minsky and AI generalization problem.
11:57 Defining intelligence in AI
17:17 Is AI masquerading as a trendy statistical analysis tool?
23:35 AI systems lack our most basic intuitions.
27:38 The public not wanting to face Reality.
29:36 Equipping AI with Kant’s categories of the mind (Time, Space, Causality)
33:40 Neural nets VS traditional tools.
34:50 Causality in AI
37:14 Lack of interdisciplinary learning.
45:54 How can we achieve human level of understanding in AI?
49:21 More limitations.
59:35 Motivation in inanimate systems.
1:01:31 Lack of body and transcendent consciousness.
1:05:55 What interdisciplinary learning would you encourage?
1:06:49 Book recommendations.

Gary Marcus is CEO and Founder of Robust AI, well-known machine learning scientist and entrepreneur, author, and Professor Emeritus at New York State University.

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Oct 18, 2021

China denies report of hypersonic missile test, says tested space vehicle

Posted by in categories: military, space

BEIJING, Oct 18 (Reuters) — China tested a space vehicle in July, not a nuclear-capable hypersonic missile as reported by the Financial Times, the Chinese foreign ministry said on Monday.

Quoting five people familiar with the matter, the Financial Times reported on Saturday that China had tested a nuclear-capable hypersonic missile that flew through space, circling the globe before cruising down toward its target, which it missed by about two dozen miles. read more. The paper said the feat had “caught U.S. intelligence by surprise”.

“It was not a missile, it was a space vehicle,” ministry spokesman Zhao Lijian told a regular press briefing in Beijing when asked about the report, adding it had been a “routine test” for the purpose of testing technology to reuse the vehicle.