Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Emission Spectra02:39

Emission Spectra

65.1K
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
65.1K
Schwarzschild Radius and Event Horizon01:21

Schwarzschild Radius and Event Horizon

2.2K
No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
The minimum speed required to launch a projectile from the surface of an object to which it is gravitationally bound so that it eventually escapes the object’s gravitational field is called the escape velocity. The escape velocity is independent of the mass of the object. Merging the idea of escape...
2.2K
Detection of Black Holes01:10

Detection of Black Holes

1.7K
Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
1.7K
Atomic Emission Spectroscopy: Overview01:20

Atomic Emission Spectroscopy: Overview

3.0K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
3.0K
Atomic Emission Spectroscopy: Lab01:29

Atomic Emission Spectroscopy: Lab

873
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
873
Origin of Photosynthesis01:26

Origin of Photosynthesis

112
Photosynthesis represents a fundamental biological process that transformed Earth's atmosphere and paved the way for complex life. Emerging roughly 3.4–3.8 billion years ago, the earliest photosynthetic organisms harnessed light energy to produce organic compounds. These anoxygenic phototrophs used electron donors like hydrogen sulfide (H₂S) or ferrous iron (Fe²⁺), rather than water, and did not release molecular oxygen (O₂) as a byproduct. Various groups, including...
112

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Real-world patterns of treatment and response in metastatic renal cell carcinoma: a multicentre UK-wide review with UK Renal Oncology Collaborative (UK ROC).

ESMO real world data and digital oncology·2026
Same author

Receiver design for the REACH global 21-cm signal experiment.

Experimental astronomy·2025
Same author

The role of magnetic resonance imaging in the rare pathologies of the vulva.

European journal of radiology·2025
Same author

Cosmology and fundamental physics with the ELT-ANDES spectrograph.

Experimental astronomy·2024
Same author

Cancer-associated mesothelial cells are regulated by the anti-Müllerian hormone axis.

Cell reports·2023
Same author

From asking to observing. Behavioural measures of socio-emotional and motivational skills in large-scale assessments.

Social science research·2023

Related Experiment Video

Updated: May 2, 2026

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

15.6K

A supernova origin for dust in a high-redshift quasar.

R Maiolino1, R Schneider, E Oliva

  • 1INAF-Osservatorio Astrofisico di Arcetri, Firenze, Italy. maiolino@arcetri.astro.it

Nature
|October 1, 2004
PubMed
Summary

Supernovae, not evolved stars, likely formed interstellar dust in the early Universe. Infrared observations of a high-redshift quasar support this supernova dust origin theory.

More Related Videos

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.0K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.5K

Related Experiment Videos

Last Updated: May 2, 2026

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System
09:44

Laboratory Drop Towers for the Experimental Simulation of Dust-aggregate Collisions in the Early Solar System

Published on: June 5, 2014

15.6K
Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas
07:54

Experimental Methods of Dust Charging and Mobilization on Surfaces with Exposure to Ultraviolet Radiation or Plasmas

Published on: April 3, 2018

8.0K
Scattering And Absorption of Light in Planetary Regoliths
11:34

Scattering And Absorption of Light in Planetary Regoliths

Published on: July 1, 2019

11.5K

Area of Science:

  • Cosmic dust formation
  • Early Universe astrophysics
  • Quasar evolution

Background:

  • Interstellar dust is vital for molecular and star formation, and re-emits absorbed light.
  • Dust is traditionally thought to form in evolved low-mass stars.
  • Recent discoveries of dust in early quasars challenge this origin.

Purpose of the Study:

  • Investigate the origin of dust in the early Universe.
  • Test the hypothesis that supernovae produce early cosmic dust.

Main Methods:

  • Infrared observations of a quasar at redshift 6.2.
  • Directly determine the dust extinction curve of the quasar.
  • Compare the observed extinction curve with theoretical supernova dust models.

Main Results:

  • The dust extinction curve of the high-redshift quasar closely matches supernova dust models.
  • This agreement provides direct evidence for dust formation via supernovae.

Conclusions:

  • Supernovae are a likely source of interstellar dust in high-redshift quasars.
  • Most dust in the early Universe probably originates from supernovae.